Novinky v taxonomii a vo svete vtackarov

Peñaherrera-R., P., Ghia, T., Sherwood, D. & Gabriel, R. (2024a). New insights on male palpal bulb morphology in Cymbiapophysa Gabriel & Sherwood, 2020, with four new species from Ecuador (Araneae: Theraphosidae). Arachnology 19(7): 1003-1017. doi: 10.13156/arac.2024.19.7.1003

Four new species of Cymbiapophysa Gabriel & Sherwood, 2020 from north-western Ecuador are described based on unique combinations of male palpal bulb and female spermathecae morphology: C. ashily sp. nov., C. matildeae sp. nov., C. oton- gachi sp. nov., and C. yumbos sp. nov. An updated diagnosis, key to species, and comparative plate of the male palpal bulb of previously known species, with relabelling of some keels as nec- essary, and evidence of a subapical keel in Cymbiapophysa species, are presented. Additionally, we provide further com- mentaries about cymbial morphology and male palpal bulb structures, and two possible hypotheses related to the origin of accessory keels.

Opis nových druhov Cymbiapophysa ashily sp. nov., C. matildeae sp. nov., C. otongachi sp. nov., a C. yumbos.

Kód: Vybrať všetko

Moeller, W., Galleti-Lima, A. & Guadanucci, J. P. L. (2024). New species of tarantulas from Brazil and notes on the Hapalopini tribe (Araneae, Theraphosidae, Theraphosinae). European Journal of Taxonomy 947: 53-87. doi: 10.5852/ejt.2024.947.2611

Abstract. The monophyly of Theraphosinae is supported by both morphological and molecular phylogenies. However, intergeneric relationships often show polytomies and branches with low support. A previous phylogenetic study proposed an intergeneric relationship for the subfamily based on molecular data and divided it into three tribes: Grammostolini, Hapalopini and Theraphosini. However, not all genera of Theraphosinae were sampled, and some relationships were inferred based on morphological similarities. Regarding the Hapalopini from Brazil, the relationships of some genera are still uncertain, such as Kochiana, Catanduba, and Munduruku. In this paper, we describe four new species of Hapalopini from Brazil: Cyriocosmus paresi sp. nov., Hapalopus akroa sp. nov., H. guidonae sp. nov., and K. fukushimae sp. nov. In addition, we propose an updated diagnosis for these three genera and for the species K. brunnipes and M. bicoloratum.

Opis nových druhov Cyriocosmus paresi sp. nov., Hapalopus akroa sp. nov., H. guidonaesp. nov., a K. fukushimae.

Kód: Vybrať všetko

Sherwood, D., Gabriel, R., Questel, K., Rollard, C. & Leguin, E.-A. (2024f). A new species of Cyrtopholis Simon, 1892 from Montserrat with notes on some other Caribbean theraphosines (Araneae: Theraphosidae). Arachnology 19(9): 1298-1307. doi: 10.13156/arac.2024.19.9.1298

A new species of the Caribbean genus Cyrtopholis Simon, 1892, Cyrtopholis montserrat sp. nov. is described from the United Kingdom Overseas Territory (UKOT) of Montserrat, based on both sexes. Cyrtopholis femoralis Pocock, 1903 is redescribed from the holotype male with the first figures of the genitalia of this Montserrat endemic spider presented. The endemic Saint Barthélemy species Cyrtopholis antillana Thorell, 1894 stat. rev. is revalidated from synonymy with Cyrtopholis bartholomaei (Latreille, 1832) and non-type specimens of both sexes are described and diagnosed. Cyrtopholis innocua (Ausserer, 1871), C. intermedia (Ausserer, 1875), C. ischnoculiformis (Fran- ganillo, 1926), and C. obsoleta (Franganillo, 1935) are proposed as nomina dubia, and Cyrtopholis respinus Franganillo, 1935 is confirmed as a nomen nudum.

Opis nového druhu Cyrtopholis montserrat. Reopis Cyrtopholis femoralis. Cyrtopholis antillana opätovne validný (predtým synonymu pre Cyrtopholis bartholomaei). Cyrtopholis innocua (Ausserer, 1871), C. intermedia (Ausserer, 1875), C. ischnoculiformis (Fran- ganillo, 1926), and C. obsoleta (Franganillo, 1935) považovaní za nomina dubia, Cyrtopholis respinus Franganillo, 1935 potvrdený ako nomen nudum.

Kód: Vybrať všetko

Montenegro Vargas, R. & Aguilera, M. A. (2024a). Tarántulas chilenas de la subfamilia Theraphosinae (Mygalomorphae: Theraphosidae): una revisión a nivel de género. Revista Chilena de Entomología 50(2): 329-352. doi: 10.35249/rche.50.2.24.16

Abstract. In the present work, a taxonomic review of the Theraphosinae genera present in Chile is realized, as well as a key that facilitates their recognition. Additionally, a general description and an updated diagnosis are offered for each of them, in addition to discussing some aspects of the conservation status, natural history and geographical distribution of some of its species.

Práca sa zaoberá druhmi vtáčkarov z Chile tj. Euathlus, Phrixotrichus , Homoeomma, Grammostola (habitat, rozmožovanie atď.).

Kód: Vybrať všetko

Sherwood, D., Gabriel, R., Osorio, L. M., Benavides, L. R., Peñaherrera-R., P., Hörweg, C., Brescovit, A. D. & Lucas, S. M. (2024b). Spot the difference: on the genus Hapalopus Ausserer, 1875 in Colombia and a new related genus from Brazil and Bolivia (Araneae: Theraphosidae). ZooNova 32: 1-44. doi: 10.5281/zenodo.11458605

An incongruence in palpal bulb and spermathecal morphologies between groupings of species of the genus Hapalopus Ausserer, 1875 has persisted for some time. We redefine Hapalopus based on examination of the holotype male of the type species, Hapalopus formosus Ausserer, 1875, housed in the Naturhistorisches Museum Wien. Three new species of Hapalopus are described from Colombia: H. guerreroi Benavides, Osorio, Sherwood, Gabriel, Peñaherrera-R., Hörweg, Brescovit & Lucas sp. nov., H. platnicki Sherwood, Gabriel, Osorio, Benavides, Peñaherrera-R., Hörweg, Brescovit & Lucas sp. nov., and H. vangoghi Osorio, Benavides, Sherwood, Gabriel, Peñaherrera-R., Hörweg, Brescovit & Lucas sp. nov. The new genus Notahapalopus Sherwood, Gabriel, Peñaherrera-R., Osorio, Benavides, Hörweg, Brescovit & Lucas gen. nov. is described to house Notahapalopus aymara (Perdomo, Panzera & Pérez-Miles, 2009) comb. nov. (type species), Notahapalopus gasci (Maréchal, 1996) comb. nov., N. parauapebas Sherwood, Gabriel, Osorio, Benavides, Peñaherrera-R., Hörweg, Brescovit & Lucas sp. nov., and N. serrapelada (Fonseca-Ferreira, Zampaulo & Guadanucci, 2017) comb. nov. Discussion on the biogeography of Hapalopus and Notahapalopus gen. nov. is also provided. Hapalopus lesleyae Gabriel, 2011 is transferred to Jambu Miglio, Perafán & Pérez-Miles, 2024 based on palpal bulb morphology, giving the new combination Jambu lesleyae comb. nov.

Opis nových druhov Hapalopus guerreroi, Hapalopus platnicki, Hapalopus vangoghi. Nový rod Notahapalopus a druhy aymara, gasci, parauapebas, serrapelada. Hapalopus lesleyae presunutý rodu Jambu (Jambu lesleyae).

Kód: Vybrať všetko

Nicoletta, M. & Ferretti, N. (2024). The identity of Heterothele caudicula (Araneae: Theraphosidae) from Argentina. Arachnology 19(7): 973-975. doi: 10.13156/arac.2024.19.7.973

In this contribution, Heterothele caudicula Simon, 1886 (Theraphosidae) is transferred to the genus Thalerommata Ausserer, 1875. Thalerommata caudicula new combination is based on the examination of the type that is characterized by flattened iridescent setae covering the abdomen, a synapomorphy of this genus. Thus, this is the ninth species of the genus known and Heterothele caudicula is removed from the Argentinean theraphosid fauna.

Heterothele caudicula bola presunutá do rodu Thalerommata.

Kód: Vybrať všetko

Montenegro Vargas, R. & Aguilera, M. A. (2024b). Revisión taxonómica del género Homoeomma Ausserer, 1871 (Araneae; Theraphosidae) en Chile, con descripción de cuatro nuevas especies. Revista Ibérica de Aracnología 44: 85-96.

Abstract: The diversity and distribution of the genus Homoeomma Ausserer, 1871 in Chile is updated. Four new species are de- scribed: H. toriyamai sp. nov. (♂♀) and H. minimum sp. nov. (♂♀) from the Metropolitan Region, H. poqui sp. nov. (♂♀) from the Libertador General Bernardo O'Higgins Region and H. espinozai sp. nov. (♂) from the La Araucanía Region. New distribution rec- ords are given for H. chilense and H. orellanai. Finally, an identification key for the Homoeomma species present in Chile is provid- ed, as well as a distribution map.

Opísané nové druhy Homoeomma toriyamai sp. nov. (♂♀) a H. minimum sp. nov. (♂♀), H. poqui sp. nov. (♂♀) a H. espinozai sp. nov.

Kód: Vybrať všetko

Bariev, T. B. & Sherwood, D. (2024). First record of Hysterocrates celerierae (Smith, 1990) from Burkina Faso (Aranei: Theraphosidae). Invertebrate Zoology 21(1): 94-96. doi: 10.15298/invertzool.21.1.05

ABSTRACT. Hysterocrates celerierae (Smith, 1990), hitherto known only from Cote d’Ivoire, is newly recorded from Burkina Faso based on adult females examined in the Zoological Institute of the Russian Academy of Sciences.

Nový záznam výskytu Hysterocrates celerierae v Burkina Faso.

Kód: Vybrať všetko

Miglio, L. T., Perafán, C. & Pérez-Miles, F. (2024). Jambu, a new genus of tarantula from Brazil (Araneae, Theraphosidae, Theraphosinae). European Journal of Taxonomy 930: 229-248. doi: 10.5852/ejt.2024.930.2497

Abstract. The genus Jambu gen. nov. is proposed based on two new species: Jambu paru gen. et sp. nov. and Jambu manoa gen. et sp. nov. Hapalopus butantan is transferred to Jambu; consequently, Jambu butantan gen. et comb. nov. is proposed. The geographic distribution of J. butantan is extended on the basis of new material collected. The new genus and the new species are here diagnosed, described and illustrated. The shape of the genitalia of Jambu resembles that of Hapalopini but differs from most of them by the presence of type IV urticating setae. The presence of this type of urticating setae allows us to hypothesize that this new genus is phylogenetically related with Grammostolini. Males of Jambu differ from those of other genera of Grammostolini by the presence of a paraembolic apophysis on the palpal bulb. Females also differ from those of other Grammostolini by the spermathecae morphology, with one medial lamp-shaped or heart-shaped receptacle. The homology of some features and the taxonomic placement of the new genus are discussed.

Opis nového rodu Jambu plus druhy Jambu paru, Jambu manoa, Jambu (ex Hapalopus) butantan.

Kód: Vybrať všetko

Gabriel, R. (2024). What’s this with all these Megaphobema and Pamphobeteus petersi changes and why? Journal of the British Tarantula Society 38(3): 5-18.

After the recent publication of “Pamphobeteus Pocock, 1901: redescriptions, new species and records, description of a missing sex, with taxonomic notes and changes in Megaphobema Pocock, 1901 (Araneae: Theraphosidae)” by Sherwood, et. al. 2023, I have had some emails from hobbyists asking me how I worked all of this out. So, after a few lengthy emails I thought an article for the Journal may help others.

Vysvetľujúci článok k práci Sherwood, et. al. 2023.

Kód: Vybrať všetko

Sherwood, D. & Gabriel, R. (2024a). On the identity of Neostenotarsus guianensis (Caporiacco, 1954), with a redescription of the holotype male and the first records from Guyana (Araneae: Theraphosidae). Arthropoda [ISSN 0943-7274 (1993-2009) and EISSN 2813-3323 (2023 onwards)] 2(1): 76-84. doi: 10.3390/arthropoda2010006

Abstract: Herein, we redescribe Neostenotarsus guianensis (Caporiacco, 1954) nearly seven decades after its original description. In the original description of Neostenotarsus scissistylus Tesmoingt & Schmidt, 2002, we found characters incongruent with N. guianensis, namely, the purported presence of serration on the prolateral keels of the palpal bulb; a narrower apical third of the embolus; the absence of a patch of bristles on the retrolateral face of the palpal tibia and of a baso-retrolateral protuberance on metatarsus I; and a shorter and more apically situated megaspine on the retrolateral branch of the tibial apophyses. The characters from its original description are discussed. N. scissistylus stat. rev. has been revalidated until such time as the type material, or topotypic material, can be examined by future workers.

Reopis Neostenotarsus guianensis.

Kód: Vybrať všetko

Peñaherrera-R., P., Pinos-Sanchez, A., Guerrero-Campoverde, A., León-E., R. J. & Cisneros-Heredia, D. F. (2024c). Secrets of a didactic collection: a new tarantula genus from the Montane Forest of north-western Ecuador (Araneae: Theraphosidae). Arachnology 19(9): 1185-1191. doi: 10.13156/arac.2024.19.9.1185

A new monotypic genus of the subfamily Theraphosinae Thorell, 1869 is described from the Western Cordillera of the Andes in northern Ecuador. The new genus is diagnosed by its distinctive male palpal morphology, including a semi-spatulate bulb caused by a well developed retrolateral inferior keel, pres- ence of a cymbial apophysis, absence of a tibial apophysis, and a new character described in this contribution as a retrolateral tegular process. We comment on the similarities in male palpal bulb morphology with other neotropical genera and provide a preliminary phylogenic placement based on morphology.

Opis nového rodu Romopelma s druhom Romopelma barrigae.

Kód: Vybrať všetko

Bariev, T. B., Logunov, D. V. & Son, L. X. (2024). A new dwarf theraphosid spider species of the genus Phlogiellus Pocock, 1897 (Aranei: Theraphosidae) from Vietnam. Arthropoda Selecta 33(4): 582-588. doi: 10.15298/arthsel.33.4.12

ABSTRACT. A new alyrate species of the dwarf theraphosid genus Phlogiellus Pocock, 1897, P. birulai Bariev et Logunov, sp.n., is described from the Bidoup– Nui Ba National Park, Vietnam based on a female series. The new species can be clearly distinguished from other alyrate congeners in possessing a unique conformation of the spermathecae, which are almost uniform width throughout their length. A male lectotype is designated for Selenocosmia subinermis Giltay, 1934, described from Bokor (Cambodia), with notes on the nomenclature of this taxon.

Opis nového druhu Phlogiellus birulai.

Kód: Vybrať všetko

Müller, S., Fardiansah, R., Schneider, F., Wanke, D., Wirth, V. von & Wendt, I. (2024). Description of a new genus and two new species of Ornithoctoninae from Southeast Asia (Araneae: Theraphosidae). Integrative Systematics 7(2): 23-39. doi: 10.18476/2024.122121

A new genus, Aspinochilus gen. n., belonging to the subfamily Ornithoctoninae (Araneae: Theraphosidae) is described, with type species Aspinochilus rufus sp. n. from East Java. An additional new species, Phormingochilus hatihati sp. n., is described from West Sulawesi. The external morphological characters and genitalia structures of the new taxa are illustrated and compared to those of closely related species.

Opis nového rodu Aspinochilus s druhom Aspinochilus rufus. Opis druhu Phormingochilus hatihati.

Kód: Vybrať všetko

Ferretti, N., Nicoletta, M. & Soresi, D. S. (2024). An integrative taxonomy approach evaluates the limits of the widespread tarantula Plesiopelma longisternale (Araneae: Mygalomorphae: Theraphosidae) and reveals a new species from Argentina. Zoologischer Anzeiger 308: 131-143. doi: 10.1016/j.jcz.2023.12.003

Plesiopelma longisternale is a widespread tarantula in Argentina and its limit is difficult to determine due to their morphological variation among populations. Males are distinguishable by the following character combination: a field of spines on the apical half of the palpal tibia, a very long embolus and a field of spines on the reotrolateral face of cymbium; females are characterized by long spiraled ducts distant from each other. Here, we used mitochondrial DNA (cox1) to reconstruct the first phylogeny of P. longisternale, in combination with morpho- logical data and molecular species delimitation, to assess the taxonomic limits of this species. Our phylogenetic results confirm a close relationship among the populations from central Argentina and a new evolutionary in- dependent lineage identified as a new species, Plesiopelma absconditus, which is here diagnose, described and illustrated. We further analyzed the diagnostic characters of P. longisternale through the examination of the types and specimens from many populations and found that their morphological intraspecific variations largely overlap. Altogether, our results demonstrate that some of the variability of P. longisternale in central Argentina represent polymorphisms of a single species supported by molecular data. In addition, we discovered a new species from this genus distinguishable by molecular and morphological data and highlight the need for multiple lines of evidence to solve the taxonomic problems in species of tarantulas.

Nový druh Plesiopelma absconditus. Opísaná variabilita (polymorfizmus) Plesiopelma longisternale.

Kód: Vybrať všetko

Arias, V., Hilario, M., Ferretti, N. & Pérez-Miles, F. (2024). A new species of Plesiopelma from Uruguay (Araneae, Theraphosidae, Theraphosinae). Boletim do Museu Paraense Emílio Goeldi Ciências Naturais 19(3, e2024-1001): 1-14. doi: 10.46357/bcnaturais.v19i3.1001

We describe and illustrate a new tarantula species of the genus Plesiopelma from Lavalleja and Maldonado, Uruguay. Plesiopelma arevaloae sp. nov. is distinguished from other known species by morphological characters and molecular evidence.

Opis druhu Plesiopelma arevaloae.

Kód: Vybrať všetko

Sherwood, D. & Caleb, J. T. D. (2024). On ten unavailable and thirty-four dubious names for spiders (Araneae) from India. Revista Ibérica de Aracnología 44: 113-118.

Abstract: Ten names for spiders from India, currently recognised as valid by the World Spider Catalog (2024), are shown to be unavailable. Thirty-four spider names which available, but which instead present taxonomic problems are treated as nomina dubia.

Podľa všetkého Poecilotheria nallamalaiensis (nesprávny popis) je synonymum pre Poecilotheria formosa.

Kód: Vybrať všetko

Sherwood, D. & Tripathi, R. (2024). Notes on a type specimen of Poecilotheria Simon, 1885 from India (Araneae: Theraphosidae). Newsletter of the British Arachnological Society 160: 13

Poznámky k druhu P. tigrinawesseli.

Kód: Vybrať všetko

Dupérré, N. & Tapia, E. (2024b). Description of a new Psalmopoeus Pocock, 1895 species (Araneae, Theraphosidae, Psalmopoeinae) from the Chocó region of Ecuador. Zootaxa 5437(4): 495-509. doi: 10.11646/zootaxa.5437.4.3

A new species of Theraphosidae, genus Psalmopoeus Pocock, 1895 is described from the Chocó region of Ecuador, Psalmopoeus pristirana n. sp. (male and female). The identity of the female of the recently described Psalmopoeus satanas Peñaherrera-R. & León-E., 2023 is discussed. Images of Psalmopoeus ecclesiasticus Pocock, 1903 are given for comparison and a distribution map of all Ecuadorian Psalmopoeus species is presented.

Nový druh Psalmopoeus pristirana, reopis Psalmopoeus satanas.

Kód: Vybrať všetko

Peñaherrera-R., P. & León-E., R. J. (2023). On Psalmopoeus Pocock, 1895 (Araneae, Theraphosidae) species and tarantula conservation in Ecuador. ZooKeys 1186: 185-205. doi: 10.3897/zookeys.1186.108991

Two novel species of Psalmopoeus Pocock, 1895 are described from the north-western and central-western slopes of the Cordillera Occidental of the Andes mountain range in Ecuador. The new species are easily differentiated from other congeners of Psalmo- poeus by spermathecae and male palpal bulb morphology and a comparatively distant distribution to the type localities of the geographically nearest known congeners. The diagnosis of P. ecclesiasticus Pocock, 1093 is revised and updated, considering the nov- el species and observations on spermatheca of this species. Likewise, an evaluation is provided for the new species in terms of conservation due to the various threats impact- ing ecosystems and ecosystem services of their type localities. Finally, the importance of theraphosid spiders in Ecuador and South America and their possible conservation requirements are discussed and assessed.

Opis nového druhu Psalmopoeus satanas, Psalmopoeus chronoarachne, pár poznámok ku Psalmopoeus ecclesiasticus.

Kód: Vybrať všetko

Sherwood, D., Henrard, A. & Van Den Spiegel, D. (2024). Selenogyrus foordi, a new species and the first record of the subfamily Selenogyrinae Smith, 1990 from Guinea (Araneae, Theraphosidae). African Invertebrates 65(2): 37-48. doi: 10.3897/AfrInvertebr.65.128284

Selenogyrus foordi, a new species and the first record of the subfamily Selenogyrinae Smith, 1990 from Guinea (Araneae, Theraphosidae)

Nový druh Selenogyrus foordi.

Kód: Vybrať všetko

Bolano-Manjarres, E. D., Benavides-Rivas, L., Tamaris-Turizo, C. E. & Osorio, L. M. (2024). Two new species of Spinosatibiapalpus Gabriel & Sherwood, 2020 (Araneae: Theraphosidae) from Colombia. Arachnology 19(9): 1205-1210. doi: 10.13156/arac.2024.19.9.1205

Two new species of the genus Spinosatibiapalpus Gabriel & Sherwood, 2020 are described: S. paula sp. nov. from the Colombian Caribbean coast and S. neisi sp. nov. from central Colombia. Both species are proposed based on the morphology of the palpal bulb, tibial apophysis and spermathecae. Taxo- nomic keys for all known species of the genus and a distribution map for Colombian species are provided

Nové druhy Spinosatibiapalpus paula, Spinosatibiapalpus neisi.

Kód: Vybrať všetko

Ríos-Tamayo, D. (2024a). Taxonomy and phylogeny of the genus Trichopelma Simon, 1888 (Araneae: Theraphosidae: Trichopelmatinae) in Cuba, with the descriptions of seven new species and a new species of Thalerommata Ausserer, 1875. Journal of Insect Biodiversity and Systematics 10(2): 347-399. doi: 10.61186/jibs.10.2.347

ABSTRACT. The spiders of the genus Trichopelma Simon, 1888 present in Cuba, are revised. Currently, the genus Trichopelma comprises 22 known species distributed in the Caribbean, and Central and the upper region of South America. Cuba currently hosts five valid species and, in this study, the descriptions of seven new species distributed throughout the island are presented: T. baracoense sp. nov. (♂♀, Guantanamo prov.), T. cheguevarai sp. nov. (♂, Ciego de Ávila prov.), T. citma sp. nov. (♀, Granma prov.), T. fidelcastroi sp. nov. (♂♀, Holguín prov.), T. granmense sp. nov. (♂♀, Granma prov.), T. rudloffi sp. nov. (♂♀, Holguín prov.) and T. soroense sp. nov. (♂♀, Artemisa prov.). Based on morphological characters, a cladistic analysis was performed, revealing the phylogenetic position of the new species compared to the species previously described. Based on this phylogeny, morphological characters and close proximity in distribution, T. banksia Özdikmen & Demir, 2012 syn. n., is proposed as a junior synonym of T. cubanum (Simon, 1903). The genus Thalerommata Ausserer, 1871 is reported from Cuba for the first time, with the description of T. anae sp. nov. (♂, Sancti Spíritus prov.).

Nové druhy rodu Trichopelma tj. T. baracoense sp. nov., T. cheguevarai sp. nov. (♂, Ciego de Ávila prov.), T. citma sp. nov. (♀, Granma prov.), T.
fidelcastroi sp. nov. (♂♀, Holguín prov.), T. granmense sp. nov. (♂♀, Granma prov.), T.rudloffi sp. nov. (♂♀, Holguín prov.) a T. soroensesp. nov. (♂♀, Artemisa prov.).

T. banksia je považované za mladšie synonymum T. cubanum.

Rod Thalerommata objavený aj na Kube s novým druhom T. anae.

Kód: Vybrať všetko

Osorio, L. M., Benavides, L., García-Atencia, S. & Bertani, R. (2024). Three new species of tiny tarantulas of the genus Thalerommata Ausserer, 1875 (Araneae, Theraphosidae) from northern Colombia. Zootaxa 5537(1): 95-114. doi: 10.11646/zootaxa.5537.1.5

Thalerommata Ausserer, 1875 is a theraphosid genus with very small species that resemble Trichopelma, although they lack the dot pattern on the abdomen. They are also distinguished from all other Theraphosidae by the presence of flattened, iridescent setae covering the abdomen, and sometimes, the legs too. Its current distribution includes the following countries: Argentina, Bahamas, Colombia, Cuba, Jamaica and Venezuela. Three new species of tiny tarantulas of the genus Thalerommata are described from northern Colombia: Thalerommata yukpa sp. nov. from Cesar Department, Thalerommata kogui sp. nov. and Thalerommata margarita sp. nov. from Magdalena Department. Colombia has now seven of the thirteen Thalerommata species.

Nové druhy Thalerommata yukpa sp. nov., Thalerommata kogui sp. nov. a Thalerommata margarita sp. nov.

Kód: Vybrať všetko

Millenpeier, M., Chaparro, J. C., Ochoa, J. A., Ferretti, N. & West, R. (2024). A new species of Thrixopelma (Araneae: Theraphosidae: Theraphosinae) from southern Peru. Studies on Neotropical Fauna and Environment 59(2): 578-586. doi: 10.1080/01650521.2024.2328938

This work aims to describe a new species of Thrixopelma Schmidt, 1994 from southcentral Peru in the Department of Cusco. Thrixopelma choquequirao sp. nov. can be easily distinguished from congeneric species by the low number of labial cuspules, a very long palpal tibia, morphology of the male palpal bulb and female spermathecae. Currently the genus Thrixopelma comprises seven formally described species which inhabit Perú and Ecuador, distributed in Amazonian rainforest, Coastal Dry Forest, and Andean Dry Forest.

Opis nového druhu Thrixopelma choquequirao sp. nov..

Kód: Vybrať všetko

Ortiz, D. & Fonseca, E. O. (2024). A hairy giant among dwarves: Trichopelma grande, a distinct new species of tarantula from Cuba (Araneae: Theraphosidae). Journal of Natural History 58(45-48): 2189-2205. doi: 10.1080/00222933.2024.2401921

Large size, tropical climate, topographic complexity, and millions of years of isolation have turned the Greater Antillean islands into natural laboratories of evolution. Several groups have experienced explosive diversification across these islands, leading to highly diverse and endemic biotas and species experiencing unique adap- tations. Here we describe a new tarantula species from the Viñales area, a biodiversity hotspot in western Cuba. Despite being a middle-sized species with large projected setae on the legs, reminiscent of those in arboreal tarantulas, phylogenomic analysis, diagnostic morphological features, and trap-door retreat building behaviour identifies it as the largest known representative of Trichopelma, and the only one with such hirsute legs. We provide mitochondrial barcoding data and a database of ultraconserved elements loci of the holotype of this species, which will help to include it in future phylogenetic studies of Theraphosidae. Given its limited distribution range, and its apparent absence in natural history collections despite its distinct appearance, this species might be scarce, positioning it as a potential conservation concern.

Opis druhu Trichopelma grande.

Kód: Vybrať všetko

Kaderka, R. (2024b). Urupelma humantay, a new species of Andean tarantula from the Cuzco region in Peru (Araneae: Theraphosidae: Theraphosinae). Revista Ibérica de Aracnología 45: 20-26.

Abstract: A new Peruvian tarantula, Urupelma humantay sp. nov., from the Cuzco region is herein described, diagnosed and illustrated. The species is similar to Urupelma veronicae Kaderka et al., 2023, and U. dianae Kaderka et al., 2023, another two Andean tarantulas from the Cuzco region; it differs trom these two species in the absence of retrolateral keel in the morphology of palpal bulb, and in the different shape of seminal receptacles without sclerotized basal extensions.

Nový druh Urupelma humantay.

Kód: Vybrať všetko

Kaderka, R., Lüddecke, T., Řezáč, M., Řezáčová, V. & Hüsser, M. (2023). Revision of the Peruvian tarantula Homoeomma peruvianum (Chamberlin, 1916): description of a new genus with eleven new species and insights to the evolution of montane tarantulas (Araneae: Theraphosidae: Theraphosinae). Journal of Natural History 57(41-44): 1710-1824. doi: 10.1080/00222933.2023.2265621

The Peruvian tarantula Homoeomma peruvianum (Chamberlin, 1916) is revised. As the type specimens do not fit the diagnostic characters of Homoeomma Ausserer, 1871, especially because of the different palpal bulb morphology in males and the shape of spermathecae in females, H. peruvianum (Chamberlin, 1916) was transferred into the newly established genus Urupelma gen. n., which is herein described, diagnosed and illustrated. Eleven new species of Urupelma gen. n. (U. sanctitheresae sp. n., U. sanctimariae sp. n., U. awanqay sp. n., U. ashaninka sp. n., U. atarraz sp. n., U. megantonianum sp. n., U. machiguenga sp. n., U. pampas sp. n., U. johannae sp. n., U. veronicae sp. n., and U. dianae sp. n.) are herein described, diagnosed and illustrated. The monophyly of Urupelma gen. n. is supported by a molecular phylogenetic analysis focused on the tarantulas with urticating setae of type III and III+IV and based on three genes: the nuclear 18S and 28S, and the mitochon- drial COI gene. Apart from the support of the new genus and some existing valid genera, the molecular phylogeny also sheds light on the dynamic evolutionary history behind the adaption to high montane environments in tarantulas.

Revízia druhu Homoeomma peruvianum, ktorý bol presunutý do nového rodu Urupelma. Opis 11 nových druhov v tomto rode U. sanctitheresae sp. n., U. sanctimariae sp. n., U. awanqay sp. n., U. ashaninka sp. n., U. atarraz sp. n., U. megantonianum sp. n., U. machiguenga sp. n., U. pampas sp. n., U.
johannae sp. n., U. veronicae sp. n., and U. dianae sp. n..

Kód: Vybrať všetko

Bertani, R. & Motta, P. C. (2024). A new species of Vitalius (Araneae: Theraphosidae) from the Brazilian Cerrado. Zoologia (Curitiba) 41(e24011): 1-8. doi: 10.1590/S1984-4689.v41.e24011

ABSTRACT. A new theraphosid species, Vitalius ornatissimus sp. nov., is described based on one male and one female from Brazil. The new species is distributed in the Brazilian states of Tocantins, Goiás, Distrito Federal, and the western state of Bahia, living in areas of the Cerrado biome. It is closely related to and resembles Vitalius chromatus (Schmidt, 2004) in appearance, with a general black coloration and whitish rings or stripes on the legs and palp in both sexes. With V. chromatus, it shares the presence of a row of spines on the distal-retrolateral edge of palpal tibia of male, but differs by the tibial apophysis and metatarsus I shape. Vitalius ornatissimus sp. nov. is the first species of Vitalius Lucas, Silva Jr & Bertani recorded exclusively in central Cerrado. KEY WORDS. Cerrado, Mygalomorphae, Nhandu chromatus, tarantula, taxonomy.

Nový druh Vitalius ornatissimus.

Kód: Vybrať všetko

Sherwood, D. & Gabriel, R. (2024b). Two new species of Thrixopelma Schmidt, 1994 from Peru (Araneae: Theraphosidae). ZooNova 31: 1-8. doi: 10.5281/zenodo.10830561

Two new species of Thrixopelma Schmidt, 1994 are described from Peru based on historic male specimens: Thrixopelma christineae sp. nov. and Thrixopelma eliseanneae sp. nov., both deposited in the Muséum national d’histoire naturelle, Paris. This work increases the diversity of this genus to ten, and the total number of congeners known from Peru to nine.

Opis nových druhov Thrixopelma christineae sp. nov. and Thrixopelma eliseanneae sp. nov.

Kód: Vybrať všetko

Kaderka, R. & Quispe-Colca, O. M. (2025). Description of a male of the Peruvian tarantula Thrixopelma aymara (Chamberlin, 1916), and a new species of Thrixopelma Schmidt, 1994 from Peru (Araneae; Theraphosidae; Theraphosinae), with comments on the conservation of tarantulas in Peru. Revista Peruana de Biología 32(2, e30562): 1-35. doi: 10.15381/rpb.v32i2.30562

The male of the Peruvian tarantula Thrixopelma aymara (Chamberlin, 1916) coming from the type locality is described, re-diagnosed and illustrated. A new species of Thrixopelma Schmidt, 1994, Thrixopelma zaratensis sp. nov. from the Department of Lima in Peru, is herein described, diagnosed and illustrated. Additionally, we discuss the conservation of tarantula species in Peru.

Reopis Thrixopelma aymara, nový druh Thrixopelma zaratensis.

Kód: Vybrať všetko

Sherwood, D., Gabriel, R., Peñaherrera-R., P., León-E., R. J., Rollard, C., Leguin, E.-A., Brescovit, A. D. & Lucas, S. M. (2025f). On the identity of some taxa in the tarantula tribe Hapalopini, with two synonymies, and description of four new genera and three new species (Araneae: Theraphosidae). ZooNova 46: 1-23. doi: 10.5281/zenodo.17612014

Four new genera are described to resolve the recent placement of non-congeneric species in Hapalopus Ausserer, 1875 and Thrixopelma Schmidt, 1994. Further taxonomic notes on Hapalopini are provided. Crypticarachne gen. nov. is described for the newly combined monotypic species Crypticarachne nadineae (Sherwood & Gabriel, 2022) comb. nov. Devicarina gen. nov. is described to house the newly combined species Devicarina akroa (Moeller, Galleti-Lima & Guadanucci, 2024) comb nov. (type species) and Devicarina guidonae (Moeller, Galleti-Lima & Guadanucci, 2024) comb. nov. which were clearly misplaced in Hapalopus. Ewok gen. nov. is described for six newly combined and two newly described species: Ewok aymara (Chamberlin, 1916) comb. nov., Ewok aycaramba sp. nov., Ewok christineae (Sherwood & Gabriel, 2024) comb. nov. (type species), Ewok cyaneolum (Schmidt, Friebolin & Friebolin, 2005) comb. nov., Ewok eliseanneae (Sherwood & Gabriel, 2024) comb. nov., Ewok kainae sp. nov., Ewok kimraykawsaki (Signorotto et al., 2025) comb. nov. and Ewok pruriens (Schmidt, 1998) comb. nov. Warmiru gen. nov. is described to accommodate the newly combined species Warmiru lagunas (Schmidt & Rudloff, 2010) comb. nov. and Warmiru longicolli (Schmidt, 2003) comb. nov. (type species). Thrixopelma peruvianum (Schmidt, 2007) syn. nov. is proposed as a junior synonym of Warmiru longicolli comb. nov. based on spermathecal morphology. Finally, Anqasha lima sp. nov. is described based on material from Peru in accordance with Article 13 of the International Code of Zoological Nomenclature. The recent misidentification of palpal bulb keels by Kaderka & Quispe- Colca (2025) is corrected, and Thrixopelma zaratensis Kaderka & Quispe-Colca, 2025 is newly transferred to Ewok gen. nov. with Ewok zaratensis syn. nov. placed as a junior synonym of Ewok christineae comb. nov.

Nový rod Crypticarachne s druhom Crypticarachne nadineae.

Nový rod Devicarina s druhom Devicarina akroa a Devicarina guidonae (ex Hapalopus)

Nový rod Ewok, nový druh Ewok aycaramba sp. nov. + presuny z iných rodov Ewok aymara (Chamberlin, 1916) comb. nov., Ewok aycaramba sp. nov., Ewok christineae (Sherwood & Gabriel, 2024) comb. nov. (typový druh), Ewok cyaneolum (Schmidt, Friebolin & Friebolin, 2005) comb. nov., Ewok eliseanneae (Sherwood & Gabriel, 2024) comb. nov., Ewok kainae sp. nov., Ewok kimraykawsaki (Signorotto et al., 2025) comb. nov. and Ewok pruriens (Schmidt, 1998) comb. nov..

Nový rod Warmiru presun Warmiru lagunas (Schmidt & Rudloff, 2010) comb. nov. and Warmiru longicolli
(Schmidt, 2003) comb. nov. (typový druh).

Thrixopelma peruvianum je považovaná za mladšie synonymum Warmiru longicolli comb. nov..

Opis nového druhu Anqasha lima.

Thrixopelma zaratensis bola presunutá do rodu Ewok tj. Ewok zaratensis, ktorý je zároveň mladším synonymom pre Ewok christineae.

Kód: Vybrať všetko

Sherwood, D., Gabriel, R., Peñaherrera-R., P. & Alayón García, G. (2025a). A new species of Acanthoscurria Ausserer, 1871: proposal of the theraphosoides species-group and first published record of the genus from Colombia (Araneae: Theraphosidae). Zootaxa 5563(1): 237-254. doi: 10.11646/zootaxa.5563.1.16

A remarkable new species of Acanthoscurria Ausserer, 1871, is described from Colombia, Acanthoscurria armasi sp. nov., representing the first published record of the genus from this country. New insights into palpal bulb morphology and biogeography of the newly-proposed theraphosoides species-group are provided.

Opis nového druhu Acanthoscurria armasi.

Kód: Vybrať všetko

Osorio, L. M., Polo, J. S. Á., Sabbatino, A. F. & Martínez, L. A. S. (2025b). First record of Aenigmarachne Schmidt, 2005 (Araneae: Theraphosidae) from Colombia, with the description of a new species and the first described female    (4):. Zootaxa 5723(4): 550-564. doi: 10.11646/zootaxa.5723.4.5

The previously monotypic genus Aenigmarachne Schmidt, 2005, known only from a single male specimen collected presumably in Isla el Coco, Costa Rica, is reported here for the first time in Colombia, with the description of a new species based on male and female specimens. Thus, we expand the known geographic range of the genus and enhance our understanding of Theraphosinae diversity in northern South America and Colombia. Additionally, we provide detailed observations on the urticating setae in the species and discuss aspects of its natural history.

Opis nového druhu Aenigmarachne colombiana.

Kód: Vybrať všetko

Peñaherrera-R., P., León-E., R. J., Guerrero-Campoverde, A., Falcón-Reibán, J. M., Fajardo-Torres, J. D., Picón-Rentería, P., Gabriel, R., Sherwood, D. & Cisneros-Heredia, D. F. (2025c). Novel insights on Psalmopoeinae Samm & Schmidt, 2010 (Araneae: Theraphosidae): new species, taxonomic restorations, and reversal of four erroneous synonymies. Arachnology 20(3): 491-508. doi: 10.13156/arac.2024.20.3.18

Two new species of Tapinauchenius Ausserer, 1871 are described from Ecuador, T. dayuma sp. nov. and T. montufari sp. nov., based on distinctive spermathecae morphology, including the discovery of a novel spermathecal structure. These taxa rep- resent new distributional records for the genus and suggest a potential trans-Andean speciation pathway for Andean thera- phosids. Furthermore, four species of Psalmopoeus Pocock, 1895 previously synonymized by Cifuentes & Bertani (2022) without sufficient justification and without examination of type specimens, are reinstated based on morphological and distribu- tional evidence: Psalmopoeus intermedius Chamberlin, 1940 stat. rest. from Panama is removed from an incorrect synonymy with P. reduncus (Karsch, 1880) from Costa Rica; P. copanensis Gabriel & Sherwood, 2020 stat. rest. from Honduras, P. pete- nensis Gabriel & Sherwood, 2020 stat. rest. from Guatemala, and P. sandersoni Gabriel & Sherwood, 2020 stat. rest. from Belize are all removed from incorrect synonymy with P. victori Mendoza, 2014 from Mexico. Psalmopoeus maya Witt, 1996 is validated as a legitimate name and not a nomen nudum, as erro- neously claimed by Cifuentes & Bertani (2022), though it remains a species inquirenda. Two new species, P. drolshageni sp. nov. and P. zombie sp. nov., are described based on previ- ously published but misidentified material. Notes are provided on Psalmopoeus ecclesiasticus Pocock, 1903 sensu stricto. Additionally, a third new species, Psalmopoeus wallacea sp. nov., is described from Honduras based on newly reported mate- rial. Last, the distribution patterns of the subfamily Psalmopoeinae at the genus level is discussed, based on current records.

Opis nových druhov Tapinauchenius dayuma, Tapinauchenius montufari.
Opis nových druhov Psalmopoeus drolshageni, Psalmopoeus zombie, Psalmopoeus wallacea.

Amazonius burgessi je synonymum pre Amazonius subcaeruleus.

Psalmopoeus maya tj. inquirenda - opätovne validná pre ďalšie skúmanie.

Psalmopoeus intermedius, Psalmopoeus petenensis, P. copanensis, P. sandersoni - opätovne validné a vyňaté ako synonymum pre Psalmopoeus victori.

Kód: Vybrať všetko

Borges, L. M., Abegg, A. D., Paladini, A. & Bertani, R. (2025). A new genus and five new species of arboreal tarantulas (Araneae: Theraphosidae) from Brazil. Zootaxa 5679(4): 521-551. doi: 10.11646/zootaxa.5679.4.4

We describe the new genus Arboriticus gen. nov. and five new species of tarantulas from southeastern and northeastern Brazil: Arboriticus celsoi gen. nov. sp. nov. (type species) with male and female, A. petropolis gen. nov. sp. nov. with male, A. minor gen. nov. sp. nov., with male, A. giganteus gen. nov. sp. nov. with male and female, and A. maculatus gen. nov. sp. nov. with both male and female. Eupalaestrus spinosissimus Mello-Leitão, 1923 is transferred to Arboriticus gen. nov., making the new combination A. spinosissimus (Mello-Leitão, 1923). Eupalaestrus tarsicrassus Bücherl, 1947 is removed from the synonymy with Eupalaestrus spinosissimus and transferred to Arboriticus gen. nov. making the new combination A. tarsicrassus (Bücherl, 1947). The male of A. tarsicrassus is described for the first time. Pamphobeteus holophaeus Mello-Leitão, 1923 is removed from the synonymy with Eupalaestrus spinosissimus, transferred to Vitalius Lucas, Silva Junior & Bertani, 1993, and considered a junior synonym of Vitalius dubius (Mello-Leitão, 1923). The new genus is supported by phylogenetic evidence based on morphological and behavioral characters. The basal position of the genus in the available cladogram, along with its diverse morphology, indicates that Arboriticus gen. nov. species diverged early during the evolution of an important clade of theraphosines in Brazil and may represent relict populations. The most striking feature of these species is their arboreal habit, which is unusual among theraphosines. Due to the endemism of these species in heavily impacted and deforested regions formerly covered by the Brazilian Atlantic Forest, their arboreal nature, and the rarity of specimens, the species of Arboriticus gen. nov. can be considered threatened, and conservation efforts for their protection are strongly recommended.

Nový rod Arboriticus s opisom nových druhov Arboriticus celsoi gen. nov. sp. nov. (typový druh), A. petropolis gen. nov. sp. nov., A. minor gen. nov. sp. nov., A. giganteus gen. nov. sp. nov. a A. maculatus gen. nov. sp. nov. a presun Arboriticus spinosissimus (ex Eupalaestrus) + Arboriticus tarsicrassus (ex Eupalaestrus).

Pamphobeteus holophaeus presunutý do rodu Vitalius (považovaný za synonymum Vitalius dubius).

Kód: Vybrať všetko

Portela, L. E. & Ríos-Tamayo, D. (2025). A new species of Bermejoa Gabriel, Sherwood & Pérez-Miles, 2023 from Peru (Araneae: Theraphosidae). Arachnology 20(3): 333-338. doi: 10.13156/arac.2024.20.3.2

A new species of the genus Bermejoa Gabriel, Sherwood & Pérez-Miles, 2023 is described from Peru: Bermejoa panguana sp. nov., based on males and females. This is the second known species of the genus, being the first descrip- tion of the female and the first record for Peru. Detailed morphological description and figures of both sexes are pre- sented.

Nový druh Bermejoa panguana.

Kód: Vybrať všetko

Sherwood, D., Gabriel, R., Peñaherrera-R., P., Rollard, C., Leguin, E.-A. & Privet, K. (2025e). Hidden treasures of the Caribbean: two new genera and one new species of Lesser Antillean ischnocoline spiders (Araneae: Theraphosidae). Natura Somogyiensis 46: 99-116. doi: 10.24394/NatSom.2025.46.99

Abstract: The new genus Caribothele gen. nov. is described to house its type species Caribothele culebrae (Petrunkevitch, 1929) comb. nov., from Puerto Rico, transferred from Holothele Karsch, 1879. Another new genus, Encantarana gen. nov. is described to house Encantarana hamiltoni gen. et sp. nov. based on both sexes, also from Puerto Rico, and is presently monotypic. Four other species misplaced in Holothele Karsch, 1879 are transferred to Caribothele gen. nov., creating the following new combinations: Caribothele denticu- lata (Franganillo, 1930) comb. nov., Caribothele maddeni (Esposito & Agnarsson, 2014) comb. nov., Caribothele shoemakeri (Petrunkevitch, 1926) comb. nov., and Caribothele sulfurensis (Maréchal, 2005) comb. nov.

Nový rod Caribothele s typovým druhom Caribothele culebrae (ex Holothele) + presuny Caribothele denticulata (Franganillo, 1930) comb. nov., Caribothele maddeni (Esposito & Agnarsson, 2014) comb. nov., Caribothele shoemakeri (Petrunkevitch, 1926) comb. nov., and Caribothele sulfurensis.

Nový rod Encantarana s novým druhom Encantarana hamiltoni.

Kód: Vybrať všetko

Montenegro Vargas, R. & Aguilera, M. A. (2025b). On the genus Catumiri Guadanucci, 2004 (Araneae: Theraphosidae) in Chile, with description of a new species. Revista Ibérica de Aracnología 47: 82-86.

Abstract: A new species of tarantula, belonging to the genus Catumiri from Chile is described. Catumiri almonacidae sp. nov. presents unique characteristics in the male palpal bulb and tibial apophysis, and the female spermathecae. It is distributed in the south centre of Chile, between 33.5º S and 35.4º S latitude. This species is commonly known in Chile informally as the Mahogany Dwarf Tarantula. The new species is diagnosed, described illustrated. Comments on the natural history and a distribution map of the genus are presented.

Nový druh Catumiri almonacidae.

Kód: Vybrať všetko

Acuña, D. C., Dumbrique, M. M. U., Ranido, M. C., Ragasa, L. R. P., Noriega, C. N. C., Mayor, A. B. R., Florendo Jr., G. A., Fadri, M. J. A., Wirth, V. von, Santiago-Bautista, M. R. & Guevarra Jr., L. A. (2025a). Taxonomic revalidation of Selenobrachys Schmidt, 1999 and Chilocosmia Schmidt & von Wirth, 1992 based on morphological and molecular analyses (Araneae, Theraphosidae), with the description of a new species from Romblon Island, Philippines. ZooKeys 1233: 139-193. doi: 10.3897/zookeys.1233.128056

Selenobrachys Schmidt, 1999 and Chilocosmia Schmidt & von Wirth, 1992 were con- sidered junior synonyms to Orphnaecus Simon, 1892 without further morphological in- vestigation nor the use of molecular methods of analysis. Herein, the type specimens are reexamined with newly collected samples of currently known Orphnaecus species, including new specimens from Romblon Island, Philippines. Morphological and molecu- lar analyses were performed, utilizing cytochrome oxidase I (COI) and ribosomal genes (12S–tRNA-Val–16S). Synapomorphies in the structure of maxillary lyra, spermathecae, and male palpal morphology were observed in O. philippinus and the Romblon specimen which are distinct from other Orphnaecus species. In addition, lyrate morphology, setae structure on the patella of palp dorsal, and the male palpal organ morphology of O. dichro- matus differ from other Orphnaecus species. Cladistic separation observed in molecular phylogenetic analyses supports morphological observations. Our findings suggest that the genus Selenobrachys is distinct from Orphnaecus; hence, the genus Selenobrachys Schmidt, 1999, stat. rev. and its type species Selenobrachys philippinus Schmidt, 1999, comb. rest., are restored and the new species from Romblon Island, Selenobrachys us- tromsupasius sp. nov., be identified as the second Selenobrachys species. Furthermore, the genus Chilocosmia Schmidt & von Wirth, 1992, stat. rev. and the original combina- tion of its type species, Chilocosmia dichromata Schmidt & von Wirth, 1992, comb. rest. are restored. Male specimens of S. philippinus and C. dichromata were described for the first time. Insights on the biogeography of Philippine tarantulas are discussed.

Rod Selenobrachys opätovne validný s typovým druhom Selenobrachys philippinus a novým druhom Selenobrachys ustromsupasius.

Rod Chilocosmia opätovne validný s typovým druhom Chilocosmia dichromata.

Prvý opis samcov S. philippinus and C. dichromata.

Kód: Vybrať všetko

Santos, N. A. S., Almeida, M. Q., Morais, J. W. de & Bertani, R. (2025c). New species of Jambu Miglio, Perafán & Pérez-Miles, 2024 and Guyruita Guadanucci, Lucas, Indicatti & Yamamoto, 2007 (Araneae: Theraphosidae) from Brazil, with notes on Hapalopus Ausserer, 1875. Zootaxa 5660(2): 243-254. doi: 10.11646/zootaxa.5660.2.5

Two new species of Brazilian Amazon theraphosids are described. A new species of Guyruita Guadanucci, Lucas, Indicatti & Yamamoto, 2007, Guyruita tepequem sp. nov. is described based on a male from the State of Roraima. It differs from all other Guyruita species by the male palp having the bulb embolus with a distal torsion and the color pattern with an ovoid large clear spot on the center of the abdomen dorsum. A new species of Jambu Miglio, Perafán & Pérez-Miles, 2024, Jambu yanomami sp. nov., is herein described based on male and female from the State of Amazonas, Brazil. Jambu yanomami sp. nov. differs from those of all other congeners by the male palp lacking a paraembolic apophysis on the ring-shaped keel and a short embolus, whereas the female is unique in the spermathecae having two separate receptacles. After examining the female holotype of Proshapalopus variegatus Caporiacco, 1955, presently included in Hapalopus Ausserer, 1875, we transfer the species to Chromatopelma Schmidt, 1995 and consider it a junior synonym of Chromatopelma cyaneopubescens Strand, 1907.

Opis nových druhov Guyruita tepequem, Jambu yanomami.

Proshapalopus variegatus presunutý do rodu Chromatopelma a považovaný za mladšie synonymum Chromatopelma cyaneopubescens.

Kód: Vybrať všetko

Hoang, Q. D., Yu, K., Wendt, I., West, R. C. & Wirth, V. von (2025). The new genus Magnacrus (Araneae: Theraphosidae: Ornithoctoninae) from Vietnam, with notes on Citharognathus hosei Pocock, 1895. Zootaxa 5701(3): 351-381. doi: 10.11646/zootaxa.5701.3.5

A new ornithoctonine genus, Magnacrus gen. nov., is established with two species from the Central Highlands of Vietnam. Magnacrus tongmianensis (Zhu, Li & Song, 2002) gen. nov. comb. nov. is transferred from Citharognathus Pocock, 1895, and is redescribed based on the new Vietnamese specimens; its type locality is potentially wrongly recorded, this species likely does not inhabit China. A new species, M. taynguyenensis gen. nov. sp. nov., from Vietnam is described with both sexes. The type species of Citharognathus, C. hosei Pocock, 1895, is redescribed based on the type specimen and new samples from two populations of Sarawak, Borneo. The males of M. tongmianensis gen. nov. comb. nov., and C. hosei are additionally described. Insights into natural history and conservation of all species are included. A distribution map for both Magnacrus species is provided.

Nový rod Magnacrus + druhy Magnacrus tongmianensis (ex Citharognathus), M. taynguyenensis.

Reopis Citharognathus hosei.

Kód: Vybrať všetko

Peñaherrera-R., P., Mora-Bolaños, J., Guerrero-Campoverde, A., León-E., R. J., Ríos-Tamayo, D., Gabriel, R., Sherwood, D. & Cisneros-Heredia, D. F. (2025b). A new species of Reversopelma Schmidt, 2001 from Ecuador, and two new tarantula genera from Argentina, Bolivia, and Colombia (Araneae: Theraphosidae). Arachnology 20(3): 462-472. doi: 10.13156/arac.2024.20.3.14

The genus Reversopelma Schmidt, 2001 is revised and diagnosed based on examination of the type material of its type species, R. petersi Schmidt, 2001, and a new species, Reversopelma spinometatarsi sp. nov., from Ecuador. The new species from Ecuador provides further knowledge on the male palpal bulb and spermathecal morphology of Reversopelma, supporting the delimitation of a new genus: Vitriemboli gen. nov. (type species Vitriemboli diaguita sp. nov.), easily distinguished from Reversopelma by the presence of urticating setae types III and IV. The Bolivian species Reversopelma herzogi Gabriel, Sher- wood & Pérez-Miles, 2023 is transferred to Vitriemboli (Vitri- emboli herzogi comb. nov.) based on urticating setae and male palpal bulb morphology. A second new genus, Colombiarachne gen. nov. (type species Colombiarachne dianae sp. nov.), dis- covered separately, is described from Colombia.

Nový druh Reversopelma spinometatarsi.

Nový rod Vitriemboli + druh Vitriemboli diaguita. Reversopelma herzogi presunutá do rodu Vitriemboli.

Nový rod Colombiarachne + druh Colombiarachne dianae.

Kód: Vybrať všetko

Briggs, E. J., Foley, S. & Cook, L. G. (2025). Gondwanan relic or recent arrival? The biogeographic origins and systematics of Australian tarantulas. Molecular Phylogenetics and Evolution 204(108246): 1-16. doi: 10.1016/j.ympev.2024.108246

The composition of Australia’s fauna and flora has been largely assembled by two biogeographic processes, vicariance and long-distance dispersal and establishment. These patterns can be observed today through the survival of Gondwanan lineages contrasted with relatively recent colonization from south-east Asia, respectively. In general, the post-Gondwanan immigrant lineages from south-east Asia are taxa with traits that facilitate dispersal. Consequently, taxa like tarantulas (Araneae, Theraphosidae) that are largely pan-tropical but also have a low propensity for dispersal, are thought to be Gondwanan in origin. However, the Australian tarantulas are unsampled for phylogenomic studies and, as such, their classification and biogeographic origins have been long debated and are unresolved. Here we test if their current, morphology-based classification in Selenocosmiinae is accurate and assess whether the Australian tarantulas were present in Australia while it was part of Gondwana. We sample 369 tarantula specimens from across Australia, greatly expanding the geographic sampling of pre- vious studies, to develop the first continent-wide phylogeny of the Australian tarantulas. To resolve the ‘back bone’ of the Australian tarantula phylogeny we generate 20 new transcriptomes for species of Australian tarantulas representing distinct lineages uncovered using mitochondrial sequence data and combine these new transcriptomes with published transcriptomic data. Through the recovery of ultra-conserved element (UCE) loci from transcriptomes and testing multiple data occupancy matrices, we find that the Australian clade is mono- phyletic and nested inside the largely Asian Selenocosmiinae. We find the Australian fauna are a relatively young radiation with a crown age of 18.8–8.3 Ma and we therefore reject the hypothesis of a Gondwanan origin for these animals and, instead, infer a recent dispersal from south-east Asia. Our findings indicate that they un- derwent a rapid radiation, possibly coinciding with their arrival into Australia. Our findings refute the monophyly of Selenocosmia and Coremiocnemis as currently recognised, and we remove Selenocosmia stalkeri from synonymy with Selenocosmia stirlingi.

Selenocosmia stalkeri už nie je sysnonymum pre Selenocosmia stirlingi.

Kód: Vybrať všetko

Peñaherrera-R., P. & Guayasamin, J. M. (2025). Between cloud forests and museums: testing tarantula (Araneae: Theraphosidae) generic boundaries reveals a new montane genus from Ecuador and Colombia. Zoological Journal of the Linnean Society 205(3, zlaf152): 1-24. doi: 10.1093/zoolinnean/zlaf152

This study presents the first comprehensive morphology-based phylogenetic analysis encompassing all described species of Cymbiapophysa Gabriel and Sherwood, 2020. We provide an updated and refined phylogenetic hypothesis that resolves relationships among closely related taxa and supports the recognition of a new theraphosid clade. Preliminary analysis of this clade suggests that unconventional characters of the male palpal bulb may have untapped potential for generic-level differentiation within Theraphosidae. Further, the recovered topologies support the recognition of a new genus, Tandayarachne gen. nov. The new genus is composed of a new species from the Tandayapa Cloud Forest Station, Western Ecuador, and a previously misplaced species of Neischnocolus Petrunkevitch, 1925 from Colombia. Notably, the paratype female of the latter species is reassigned to Neischnocolus and proposed here as a new species based on distinct spermathecal morphology. Integrating our phylogenetic hypothesis with character optimization and ancestral character state reconstruction, we identify evolutionary trends in keel-nested characters, further providing support for genera delimitation on the studied clade. We discuss the current impediments facing the taxonomy of the subfamily Theraphosinae, with a specific focus on the underestimation of proper morphological analysis of the palpal bulbs in taxonomic assessments. Finally, we discuss the geographical distribution of the new genus and propose plausible scenarios to explain its disjunct distribution.

Nový rod Tandayarachne + druhy Tandayarachne pijaos (ex Neischnocolus), Tandayarachne sherwoodae.

Nový druh Neischnocolus emergens.

Kód: Vybrať všetko

Peñaherrera-R., P. & Ghia, T. (2025). A new species of Cymbiapophysa Gabriel et Sherwood, 2020 (Araneae: Theraphosidae) from north-western Ecuador. Arthropoda Selecta 34(2): 266-272. doi: 10.15298/arthsel.34.2.10

A new species of Cymbiapophysa Gabriel et Sherwood, 2020, C. bettycita sp.n., is described based on a unique combination of the male palpal bulb structures. Additionally, discussion on the distribution of the new species is provided.

Nový druh C. bettycita.

Kód: Vybrať všetko

Sherwood, D. (2025b). Annotated checklist of imported non-native spider (Araneae) taxa recorded in the United Kingdom 1800–2024. Arthropoda Selecta 34(1): 121-160. doi: 10.15298/arthsel.34.1.10

ABSTRACT. An annotated checklist of non-native spiders historically and contemporaneously known to have been accidently imported into the United Kingdom is given, a total of 35 families, 103 genera, and 131 spe- cies are accepted for the checklist. New records, based on material sent to the author over the last decade and further historical museum specimens examined, comprise 35 newly recorded species. Of these, three also represent the first records of their respective genera, and two the first records of their respective families. Five new taxo- nomic acts are proposed: Clubiona facilis O. Pickard- Cambridge, 1911, stat. rev. (Clubionidae); Bolostromus suspectus O. Pickard-Cambridge, 1911, nomen dubium (Cyrtaucheniidae); Lathys lepida O. Pickard-Cambridge, 1909, nomen dubium (Dictynidae); Orchestina dubia O. Pickard-Cambridge, 1911; nomen dubium (Oonopidae); and Melos bicolor O. Pickard-Cambridge, 1900, nomen dubium (Theridiidae).

Kód: Vybrať všetko

Sherwood, D., Blick, T. & Ballarin, F. (2025). Studies on spider nomenclature IV: additional dubious and unavailable nomina, status of genera with invalid type species, further synonymies, and emendations (Arachnida: Araneae). Revista Ibérica de Aracnología 47: 43-54.

Abstract: We propose three genera, twenty three species, and three subspecies as nomina dubia as they are unrecognisable due to being described from juveniles and/or from type material that was subsequently lost: Araneus pulcherrimus (Roewer, 1942) nomen dubium, Singa simoniana Costa, 1885 nomen dubium, Sason pectinatum Kulczyński, 1908 nomen dubium, Corinna anomala Schmidt, 1971 nomen dubium, Kishidaia conspicua concolor (Caporiacco, 1951) nomen dubium, Linyphia neophita Hentz, 1850 nomen dubium, Lycosa tarantuloides Perty, 1833 nomen dubium, Phonophilus Ehrenberg, 1831 nomen dubium, Phonophilus portentosus Ehrenberg, 1831 nomen dubium, Nesticus gastropodus Kim & Ye, 2014 nomen dubium, Philodromus cammarus Rossi in Carrara, 1846 nomen dubium, Tibellus oblongus maculatus Caporiacco, 1950 nomen dubium, Phrurolithus parcus (Hentz, 1847) nomen dubium, Conakrya Schmidt, 1956 nomen dubium, Dolomedes albicoxa Bertkau, 1880 nomen du- bium, Amycus igneus (Perty, 1833) nomen dubium, Giuiria Strand, 1906 nomen dubium, Langona minima Caporiacco, 1949 nomen dubium, Dipoena bristowei Caporiacco, 1949 nomen dubium, Dipoena quadricuspis Caporiacco, 1949 nomen dubium, Episinus hickmani Caporiacco, 1949 nomen dubium, Theridion mauense Caporiacco, 1949 nomen dubium T. meneghettii Caporiacco, 1949 nomen dubium, T. nigroplagiatum Caporiacco, 1949 nomen dubium, T. trizonatum Caporiacco, 1949 nomen dubium, T. zebra Caporiacco, 1949 nomen dubium, Misumena pallescens Caporiacco, 1949 nomen dubium, Synema trimacu- losum Schmidt, 1956 nomen dubium, and Xysticus jugalis larvatus Caporiacco, 1949 nomen dubium. Two species names found to be unavailable for other reasons: Draconarius joshimath Quasin, Siliwal & Uniyal, 2017 and Stenaelurillus jagannathae Das, Ma- lik & Vidhel, in Vidhel et al., 2015. We stabilise two threatened genus names whose type species are currently incompatibly nomina dubia, confirming the synonymy of Pozonia cornuta Schenkel, 1953 syn. conf. with Pozonia nigroventris Bryant, 1936, and Phalaea canescens (Simon, 1898) stat. rev. et syn. nov. and Tetragonophthalma vulpina (Simon, 1898) syn. nov. as junior syn- onyms of Tetragonophthalma phylla Karsch, 1878 stat. rev. Six more new synonymies, three of species and three of subspecies, are proposed: Histopona conveniens Kulczyński, 1914 syn. nov. = Histopona paganettii Nosek, 1905 stat. rest., Aculepeira armi- da pumila (Simon, 1929) syn. nov. = Aculepeira armida (Audouin, 1826), Araneus angulatus personatus Simon, 1929) syn. nov. = Araneus angulatus Clerck, 1757, Alopecosa solivaga katunjica (Ermolajev, 1937) syn. nov. = Alopecosa solivaga (Kulczyński, 1901), Attus falcarius Hentz, 1846 syn. nov. = Eris militaris (Hentz, 1845), Heliophanus dampfi Schenkel, 1923 syn. nov. = Heli- ophanus camtschadalicus Kulczyński, 1885. Spagnius foliaceus (Hentz, 1850) (ex. Theridion foliaceum Hentz, 1850) is proposed as a nomen protectum and its older homonym Theridion foliaceum Nicolet, 1849 as a nomen oblitum. Two replacement names are described: Lycosa pakistanensis Sherwood & Blick nom. nov. (ex. Lycosa nigricans Butt, Anwar & Tahir, 2006), and Enoplog- natha myanmar Blick & Sherwood, nom. nov. (ex. Enoplognatha robusta Thorell, 1898). Finally, emendations of four spider names are discussed, the first one being newly emended: Indothele rothorum Coyle, 1995, Cyrtopholis bryantae Rudloff, 1995, Eumenophorus murphyorum Smith, 1990, and Eumenophorus murphyorum (Smith, 1990).

Vysvetlenie ku etymológii Cyrtopholis bryantae, Eumenophorus murphyorum a Eumenophorus murphyorum.

Kód: Vybrať všetko

Allegue, M. & Ferretti, N. (2025). Hidden in the plains: two new extra-andean species of Euathlus (Mygalomorphae, Theraphosidae) from Argentina with comments on their sexual behaviour. Zoologica Scripta 54(2): 213-218, Suppl. 1-2. doi: 10.1111/zsc.12699

Two new species of Euathlus (Verhandlungen der Kaiserlich-Königlichen Zoologisch- Botanischen Gesellschaft in Wien, 1875, 25, 125) from Argentina are described. Euathlus ameghinoi sp. n. and Euathlus ventus sp. n. are the first records for the Patagonian Steppe. Here we used mitochondrial DNA (cox1) to perform the first molecular phylogeny of some representatives of the genus. In addition, we present the first description of the sexual behaviour of the genus. Both molecular and cladistic morphological analysis showed the genus Euathlus as monophyletic, and new species were recovered as sister groups. New species show new morphological variations of typical characters for the genus (e.g. tibial apophyses and palpal organs).

Nové druhy Euathlus ameghinoi sp. n. a Euathlus ventus sp. n.

Kód: Vybrať všetko

Allegue, M., Peralta-Seen, N. & Ferretti, N. (2025). Integrative systematics of the tarantulas Euathlus Ausserer, 1875 from Argentina: cladistics, molecular phylogeny and new species (Araneae: Theraphosidae). Arthropod Systematics & Phylogeny 83: 687-712. doi: 10.3897/asp.83.e171040

The present study contributes to the understanding of the diversity within the tarantula genus Euathlus Ausserer, 1875. Through a combination of cladistic, molecular, and morphological analyses, three new species are described: Euathlus basalticus sp. nov. from Neuquén, Euathlus kupal sp. nov. from Mendoza, and Euathlus susanae sp. nov. from the La Pampa-Mendoza provinces. Addition- ally, the female of Euathlus tenebrarum Ferretti, 2015 is described for the first time, revealing that the previously attributed female of this species belongs to E. basalticus sp. nov. Phylogenetic trees from both morphological and molecular datasets are presented. Preliminary molecular analyses reveal the identity and support the proposal of the species treated here. Morphological analyses found considerable diversity within Euathlus, particularly in genitalic structures, challenging the general assumption of morphological homogeneity among mygalomorph spiders. Cladistic analyses recovered the genus Phrixotrichus within Euathlus, though this hypothesis could not be tested with molecular data due to the lack of available sequences for Phrixotrichus. These results suggest that future taxonomic revisions may be complemented once molecular data become available. Altogether, our results provide new insights into the systematics and diversity of Euathlus and highlight the importance of integrative approaches for unraveling evolu- tionary relationships within this group.

Nové druhy Euathlus basalticus, Euathlus kupal, Euathlus susanae

Opis samice Euathlus tenebrarum.

Kód: Vybrať všetko

Montenegro Vargas, R. & Aguilera, M. A. (2025a). Una especie nueva de Euathlus (Araneae: Theraphosidae) del norte de Chile, con novedades morfológicas para el género. Revista Ibérica de Aracnología 47: 3-8

Abstract: A new species of Euathlus Ausserer 1875 is described from the Coquimbo Region, Chile. Euathlus sinapophysis sp. nov. is differentiated from its congeners by the presence of an oval patch of setae on the ventral surface of the abdomen and the absence of a tibial apophysis on the first leg of males. Both morphological characteristics are reported for the first time for the ge- nus.

Nový druh Euathlus sinapophysis.

Kód: Vybrať všetko

Allegue, M. & Ferretti, N. (2025). Hidden in the plains: two new extra-andean species of Euathlus (Mygalomorphae, Theraphosidae) from Argentina with comments on their sexual behaviour. Zoologica Scripta 54(2): 213-218, Suppl. 1-2. doi: 10.1111/zsc.12699

Two new species of Euathlus (Verhandlungen der Kaiserlich-Königlichen Zoologisch- Botanischen Gesellschaft in Wien, 1875, 25, 125) from Argentina are described. Euathlus ameghinoi sp. n. and Euathlus ventus sp. n. are the first records for the Patagonian Steppe. Here we used mitochondrial DNA (cox1) to perform the first molecular phylogeny of some representatives of the genus. In addition, we present the first description of the sexual behaviour of the genus. Both molecular and cladistic morphological analysis showed the genus Euathlus as monophyletic, and new species were recovered as sister groups. New species show new morphological variations of typical characters for the genus (e.g. tibial apophyses and palpal organs).

Nové druhy Euathlus ameghinoi sp. n. a Euathlus ventus.

Kód: Vybrať všetko

Taucare-Ríos, A., Plaza, S. O. & Pérez-Miles, F. (2025). A new species of tarantula of the genus Euathlus (Araneae: Theraphosidae) from Chile: distribution and possible threats to its conservation. Gayana 88(2, 2024): 297-309.

We describe and illustrate a new species of tarantula of the genus Euathlus Ausserer, 1875, Euathlus walteri sp. nov. This species represents the first record for the genus in Tarapacá region, being the northernmost limit of its known distribution in Chile. Known and potential distribution are provided. Precipitations and altitude are the most important variables for its distribution. In addition, the conservation status of the new species is discussed, and it is proposed as Endangered (EN) according to IUCN criteria.

Nový druh Euathlus walteri.

Kód: Vybrať všetko

Ferretti, N., Chaparro, J. C., Ochoa, J. A. & West, R. (2025). Phylogeny of the high-altitude tarantulas Hapalotremus Simon, 1903 (Araneae: Mygalomorphae: Theraphosidae) with the description of a new species. Insect Systematics & Evolution 56(1): 90-110. doi: 10.1163/1876312x-bja10068

A cladistics analysis of the high-altitude tarantulas of the genus Hapalotremus was carried out for the first time with a matrix of 21 taxa and 69 morphological characters using both equal and implied weights. Two consistent topologies were obtained with a concavity = 10.541, resulting from a sensitivity analysis. Both cladograms suggest Hapalotremus as monophyletic. Hapalotremus synapomorphies are females with spermathecae consisting in a single oval receptacle and tibia of the first pair of legs of males very short. Hapalotremus is composed of 15 species including a new species: Hapalotremus munaycha sp. nov. This new species was found to be the sister species of H. vilcanota and is distributed in central Peru at elevations about 4000 m.a.s.l. on interandean valleys. The new species distinguishes from the other known species of the genus by the intense white color on legs, carapace and cheliceae, together with a male palpal bulb carrying a slightly developed prolateral superior keel and the subapical keel ending with two very small teeth. Also, females of Hapalotremus munaycha sp. nov. are characterized by the spermathecae with very wide basal portion and small apical projections pointing upwards

Nový druh Hapalotremus munaycha.

Kód: Vybrať všetko

Dupérré, N. & Tapia, E. (2025g). Description of seven new species of Theraphosidae (Araneae, Theraphosinae; Ischnocolinae) from Ecuador, along with the identification of a new variation of type I urticating setae. Zootaxa 5722(4): 451-484. doi: 10.11646/zootaxa.5722.4.1

Seven Theraphosidae species are newly described from Ecuador: from the genus Pamphobeteus Pocock, 1901: Pamphobeteus contramina sp. nov. (male, female) and Pamphobeteus guacamayos sp. nov. (female); from the genus Thrixopelma Schmidt, 1994, Thrixopelma supay sp. nov. (female) and Thrixopelma michaeli sp. nov. (male); from the genus Hapalopus Ausserer, 1875, Hapalopus planetearth sp. nov. (female); and from the genus Holothele Karsch, 1879, Holothele incurva sp. nov. (male) and, Holothele tsala sp. nov. (female). Images of a male syntype of Pamphobeteus augusti (Simon, 1889) are included, along with a distribution map of all Pamphobeteus species found in Ecuador. The presence and distribution of urticating abdominal setae type I, III and IV are discussed, and a new variation of type I urticating setae is described.

Nové druhy Pamphobeteus contramina sp. nov. a Pamphobeteus guacamayos sp. nov. , Thrixopelma supay sp. nov. (female) a Thrixopelma michaeli sp. nov., Hapalopus planetearth sp. nov., Holothele incurva sp. nov. Holothele tsala sp. nov..

Kód: Vybrať všetko

Nicoletta, M., Ferretti, N., Soresi, D. & Pérez-Miles, F. (2025). Resurrection of Grammostola australis (Araneae: Theraphosidae) after seven decades: integrating molecular data, morphology, and distribution. Zoosystematica Rossica 34(2): 231-249. doi: 10.31610/zsr/2025.34.2.231

Abstract. The name Grammostola australis Gerschman et Schiapelli, 1948, syn. resurr. is herein resurrected from synonymy with G. inermis Mello-Leitão, 1941, based on morphological and molecular evidence. The holotypes of both species are redescribed, and the female of G. australis is described for the first time. Diagnoses of these species are also provided. Phylogenetic analyses recovered G. inermis as a distinct lineage from G. australis, suggesting that both species are more closely related to Brazilian and Uruguayan species of the genus Grammostola Simon, 1892, than to other Argentinean species. Similarly, Chilean species appear distinct from other Grammostola species, indicating that the Andes act as a geographical barrier.

Reopis Grammostola australis + G. inermis.

Kód: Vybrať všetko

Sherwood, D. & Gallon, R. C. (2025). Heterothele erdosi, a new species of Heterothele Karsch, 1879 from Nigeria (Araneae: Theraphosidae). Natura Somogyiensis 45: 51-56. doi: 10.24394/NatSom.2025.45.51

Abstract: A new species of theraphosid spider in the genus Heterothele Karsch, 1879 is described from Ibadan, Nigeria, Heterothele erdosi sp. nov. (♂), representing only the second Heterothele species known from Nigeria. It is the smallest known species of Heterothele.

Nový druh Heterothele erdosi.

Kód: Vybrať všetko

Bariev, T. B. & Sherwood, D. (2025a). New data on some African tarantulas including bulb morphology in Pterinochilus Pocock, 1897 (Araneae: Theraphosidae). Arthropoda Selecta 34(1): 58-63. doi: 10.15298/arthsel.34.1.05

ABSTRACT. We catalogue the theraphosids of the subfamilies Harpactirinae and Stromatopelminae housed in the Zoological Institute of the Russian Academy of Sci- ences, Saint Petersburg. The first record of Pterinochulus raygabrieli Gallon, 2009 from Ethiopia is presented with discussion on the bulb morphology of this species, alongside faunistic data on Eucratoscelus constrictus (Gerstaecker, 1873) and Pterinochilus murinus Pocock, 1897 in Kenya, Idiothele nigrofulva (Pocock, 1898) in South Africa, and Stromatopelma calceatum (Fabricius, 1793) in Guinea.

Pár info o Pterinochulus raygabrieli, Idiothele nigrofulva.

Kód: Vybrať všetko

Lecigne, S., Moutaouakil, S. & Lips, J. (2025). Contribution to the knowledge of the spider fauna of Morocco (Arachnida: Araneae) – second note. On new species and new records from caves and miscellaneous terrestrial ecosystems. Journal of the Belgian Arachnological Society 40(1, supplement): 1-184.

Kód: Vybrať všetko

Hernández-Corral, J., Barrientos, J. A. & García-Teba, J. P. (2025). Nuevos datos sobre las arañas (Arachnida: Araneae) del Parc Natural del Carrascal de la Font Roja (Alicante, España). Revista Ibérica de Aracnología 46: 51-75.

Abstract: The results of an annual sampling in the Natural Park of Carrascal de la Font Roja (Alcoi, Alicante) are presented. Lath- ys sexpustulata Simon, 1878, Canariphantes aff. naili (Bosmans & Bouragba, 1992) and Bassaniodes graecus (C. L. Koch, 1837) are the first appointments for the Iberian Peninsula. Tapinopa disjugata Simon, 1884 is the first records for Spain. In addition, the family Miturgidae, 4 genera and 26 species, are the first records for the Valencian Community. The family Theraphosidae, 5 genera and 9 species, are also the first records in Alicante province. As a result, the Natural Park of Carrascal de la Font Roja has in- creased its araneofauna with the first record of 8 families, 54 genera and 88 species. The number of Ibero-Balearic endemic spe- cies amounts to 22. Add the presence of a male of Gluvia dorsalis (Latreille, 1817), family Daesidae, order Solifugae.

Pár poznámok o Ischnocolus valentinus.

Kód: Vybrať všetko

Korba, J. & Opatova, V. (2026). Out of North Africa: evolution and biogeography of Afro-Arabian dwarf tarantulas (Theraphosidae, Ischnocolinae). Molecular Phylogenetics and Evolution 218(108559): 1-17. doi: 10.1016/j.ympev.2026.108559

Large-scale vicariant events are expected to create congruent phylogeographic patterns among unrelated taxa. A continental-wide disjunction displayed by unrelated plant taxa across Afro-Arabia (the RAND flora pattern) has been traditionally explained as a consequence of late Miocene aridification of the region and the formation of the Sahara Desert. We implement genomic data (UCE), divergence time estimation and biogeographic analyses to uncover the origins of RAND pattern distribution in dwarf tarantula genus Ischnocolus Ausserer, 1871. The results suggest that the disjunct distribution of Ischnocolus resulted from ecological vicariance driven by the Middle Miocene climate cooling, predating the timing of the aridification of the region. Our results thus bring evidence of phylogeographic discordance of the RAND pattern origins among different taxa. Conserved lifestyle and the preference for humid environments among the early diverging Ischnocolus lineages also suggest that dispersal across Afro-Arabia was likely catalyzed by interspecific competitive exclusion. Subsequent lifestyle switches, that enabled the dwarf tarantulas to successfully colonize dry environments, evolved repeatedly in the group’s evolution. Additionally, we delimit the boundaries of the genus Ischnocolus and assess its position within the tarantula phylogeny. As a consequence, we revalidate the genus Luphocemus Denis, 1960, which is endemic to North Africa.

Opätovne validný rod Luphocemus (ex Ischnocolus), kde boli presunuté Luphocemus elongatus a Luphocemus insidiosus.

Kód: Vybrať všetko

Zamani, A., Wirth, V. von, Fabiánek, P., Höfling, J., Just, P., Korba, J., Petzold, A., Stockmann, M., Elmi, H. S. A., Vences, M. & Opatova, V. (2025d). Size matters: a new genus of tarantula with the longest male palps, and an integrative revision of Monocentropus Pocock, 1897 (Araneae, Theraphosidae, Eumenophorinae). ZooKeys 1247: 89-126. doi: 10.3897/zookeys.1247.162886

A taxonomic revision of the eumenophorine tarantula genus Monocentropus Pocock, 1897, which currently comprises three species, M. balfouri Pocock, 1897 (♂♀; Socotra, Yemen), M. lambertoni Fage, 1922 (♂♀; Madagascar), and M. longimanus Pocock, 1903 (♂♀; Yemen), is presented. By integrating both morphological data and a molecular phy- logeny based on mitochondrial (cox1) and nuclear (28S, 18S) markers, the genus is here- in redefined to include only the type species, M. balfouri. A new genus, Satyrex Zamani & von Wirth, gen. nov., is established to comprise S. longimanus comb. nov., along with four new species from the Arabian Peninsula and the Horn of Africa described herein: S. arabicus Zamani & von Wirth, sp. nov. (♂; Saudi Arabia), S. ferox Zamani, von Wirth & Stockmann, sp. nov. (♂♀; Yemen, Oman), S. somalicus Zamani & von Wirth, sp. nov. (♂; Somaliland), and S. speciosus Zamani, von Wirth & Just, sp. nov. (♂♀; Somaliland). The new genus is partially characterised by possessing the longest male palps known in tarantulas, possibly functioning in cannibalism avoidance during mating. Both the mo- lecular phylogeny and morphological characters suggest that M. lambertoni is probably not congeneric with M. balfouri, and also indicate that multiple species may be currently subsumed under the former name. Therefore, M. lambertoni is regarded as incerta sedis pending further studies to clarify its taxonomic placement, as it is also considered to represent a species complex. Finally, the distribution of all studied taxa is discussed within a biogeographic framework.

Na velikosti záleží (už aj u pavúkov

).

Nový rod Satyrex, kde presunuli Satyrex longimanus (ex Monocentropus), nové druhy Satyrex somalicus, Satyrex speciosus, Satyrex ferox, Satyrex arabicus.

Monocentropus lambertoni pravdepodobne nepatrí do rodu Monocentropus a jeho zaradenie má byť predmetom ďalšieho výskumu.

Kód: Vybrať všetko

Peñaherrera-R., P., Guerrero-Campoverde, A., León-E., R. J., Gabriel, R., Sherwood, D. & Cisneros-Heredia, D. F. (2025a). Revisiting the tarantula genus Neischnocolus Petrunkevitch, 1925 (Araneae, Theraphosidae): new insights on male palpal bulb morphology and description of three new species. European Journal of Taxonomy 1022: 19-50. doi: 10.5852/ejt.2025.1022.3079

Abstract. We reassess the palpal bulb morphology and taxonomy of Neischnocolus Petrunkevitch, 1925 based on the examination of several types of previously described species and the description of three new species (N. moraspungo Cisneros-Heredia, Peñaherrera-R., Guerrero-Campoverde, León-E., Gabriel & Sherwood sp. nov., N. samonellaacademy Peñaherrera-R., León-E., Guerrero-Campoverde, Gabriel, Sherwood & Cisneros-Heredia sp. nov., and N. tiputini Guerrero-Campoverde, Peñaherrera-R., León-E., Gabriel, Sherwood & Cisneros-Heredia sp. nov.) from Ecuador. A new keel structure is named and herein considered as a valid diagnostic feature for the genus, previously identified as a prolateral inferior keel. The rest of the keel identification of Neischnocolus is also relabelled in concordance with Bertani’s (2000) keel homology hypothesis. Amended diagnoses of almost all the species are provided, leaving only Neischnocolus obscurus (Ausserer, 1875) since the type material has not been located.

Nové druhy Neischnocolus moraspungo, N. samonellaacademy, N. tiputini.

Neischnocolus obscurus považovaný za Nomen dubium.

Kód: Vybrať všetko

Dupérré, N. & Tapia, E. (2025e). Four new species of Neischnocolus (Araneae: Mygalomorphae: Theraphosidae) from western Ecuador. Zootaxa 5706(4): 530-550. doi: 10.11646/zootaxa.5706.4.4

Four new species of the small mygalomorph genus Neischnocolus (Theraphosidae) are described from Western Ecuador: N. ballerioi sp. nov. (male); N. pampenita sp. nov. (male, female); N. ruffoi sp. nov. (male, female) and, N. canosita sp. nov. (male). Additionally, the female of Neischnocolus cisnerosi Peñaherrera et al. 2023 is described for the first time.

Nové druhy N. ballerioi sp. nov.; N. pampenita sp. nov.; N. ruffoi sp. nov. a, N. canosita sp. nov..
Opis samice Neischnocolus cisnerosi.

Kód: Vybrať všetko

Phoorahong, P., Krityahun, N. & Wirth, V. von (2025). New record of the genus Omothymus Thorell, 1891 from southern Thailand (Araneae: Theraphosidae). Journal of the British Tarantula Society 40(2): 19-36.

This article reports the first ever record of Omothymus Thorell, 1891, found in Thailand. This study will provide a morphological description of the specimens found in the country and compare them with those of the type specimens, alongside information about their habitats. Images showing relevant data will be provided within this article.

Pár poznámok k rodu Omothymus.

Kód: Vybrať všetko

Acuña, D. C., Ragasa, L. R. P., Santiago-Bautista, M. R., Wirth, V. von & Guevarra Jr., L. A. (2025b). Revisiting and rediscovering the tarantulas (Araneae, Theraphosidae) of Culapnitan (Libmanan) Caves in the Philippines: troglomorphism, taxonomy, phylogeny and ecological niche. Subterranean Biology 52: 143-186. doi: 10.3897/subtbiol.52.142334

Abstract In 1892, French naturalist Eugène Simon described samples of cave-dwelling tarantula species collected from Culapnitan Caves in the Philippines, a cave system that is now part of the present-time Libmanan Caves Nat- ural Park (LCNP). One of these is the new monotypic tarantula genus and species of that time, Orphnaecus pellitus Simon, 1892. Based on Simon’s notes and quick observation of the eyes of the syntypes, this species is highly suspected to be troglobitic. In the present study, we rediscovered O. pellitus from its reported site and investigated its troglobitic characteristics. Morphological analysis of O. pellitus shows troglomorphic characteristics which include reduced eye size, attenuated limbs, shortened tactile setae, and diminishing pig- mentation. Tolerance to hypoxia and heightened sensitivity to ground movements are the other subterranean adaptations that were observed. Phylogenetic analysis revealed a cladistic relationship among tarantula mor- phologically identified from the genus Orphnaecus. Our findings provide evidence that O. pellitus is a true troglobitic tarantula reported worldwide, and currently the only one known from Asia. We also report two new species of Orphnaecus, Orphnaecus libmanan sp. nov. and the dwarf Orphnaecus tangcongvaca sp. nov., collected from the forest grounds of the LCNP. The ecological niche differentiation of theraphosid species in the LCNP is also provided. Our findings are supported by morphology, molecular phylogeny, and ecology.

Reopis Orphnaecus pellitus.
Nové druhy Orphnaecus libmanan sp. nov. a Orphnaecus tangcongvaca.

Kód: Vybrať všetko

Sriranan, P., Songsangchote, C., Sihavong, O., Sayavongsa, P., Sidavong, K., Satakoun, L., Inkhavilay, K., Chomphuphuang, N. & Gabriel, R. (2025). A new species of Southeast Asian dwarf tarantula in the genus Phlogiellus Pocock, 1897, from Lao PDR (Theraphosidae, Selenocosmiinae). ZooKeys 1247: 19-43 & Suppl. doi: 10.3897/zookeys.1247.155398

A new species of Southeast Asian dwarf tarantula, Phlogiellus khampheng Sriranan, Songsangchote & Chomphuphuang, sp. nov., is described from Pakse, Champasack Province, Lao PDR. The species is placed within the Yamia group of the genus Phlo- giellus, which is characterized by the absence of maxillary lyra. Phlogiellus khampheng Sriranan, Songsangchote & Chomphuphuang, sp. nov. can be distinguished from other species within the Yamia group by the unique morphology of the female spermathecae and the male embolus. The habitat and natural history of P. khampheng Sriranan, Song- sangchote & Chomphuphuang, sp. nov. are also discussed, with specimens found in mixed deciduous forests near Pakse, Lao PDR, inhabiting various microhabitats such as soil walls, under rocks, and within tree hollows. An updated comparison of scopu- la characteristics and labial cuspule counts across Phlogiellus species highlights the variability of these traits and their limitations as diagnostic features. Molecular phylogenetic analyses and species delimitation methods (ABGD and ASAP) further support the recognition of P. khampheng Sriranan, Songsangchote & Chomphuphuang, sp. nov. as a distinct species.

Nový druh Phlogiellus khampheng.

Kód: Vybrať všetko

Joel, B. M. & Ferretti, N. E. (2025). Descriptions of unknown sexes of Theraphosidae spiders (Mygalomorphae: Plesiopelma, Tmesiphantes) from northern Argentina. Revista del Museo Argentino de Ciencias Naturales, Nueva Serie 27(2): 283-290. doi: 10.22179/REVMACN.27.89

Abstract: Females previously unknown from two Argentinean tarantula (Theraphosidae), Plesiopelma paganoi Ferretti & Barneche, 2014 and Tmesiphantes crassifemur (Gerschman & Schiapelli, 1960) are here described. Both specimens were collected at the type locality or very close to it to assure to be conspecific. The female of P. paganoi can be distinguished from congeners by the high number of labial and maxillary cuspules and the shape of the spermathecae with very short and non-spiraled ducts. The female of T. crassifemur is characterized by the shape of the spermathecae and the absence of spiniform setae on coxa III and IV. New diagnoses and a distribution map for both species are presented.

Reopis Plesiopelma paganoi a Tmesiphantes crassifemur.

Kód: Vybrať všetko

Moeller, W., Galleti-Lima, A. & Guadanucci, J. P. L. (2025). Morphometric delimitation of Pterinopelma longisternale (Bertani, 2001) and Pterinopelma roseum (Mello-Leitão, 1923) (Mygalomorphae, Theraphosidae). Studies on Neotropical Fauna and Environment 60(3): 313-322. doi: 10.1080/01650521.2024.2430077

Delimiting morphological characters for phylogenetic studies in Mygalomorphae taxa can be challenging due to their conservative morphology, oftenresulting in the establishment of diagnoses with overlapping characters of continuous variation. The Theraphosidae species P. longisternale and P. roseum are considered sister species and the main diagnostic character to distinguish them is the sternum length. We tested the significance of this character in distinguishing these two species using the landmark-based analysis to explore the sternum morphometric variations. Our results showed that sternum shape variations between P. longisternale and P. roseum are continuous and can be differentiated by the width x length ratio, although they are associated with other diagnostical characters, as the size of the branches of the tibial apophysis and the palpal bulb subapical keel.

Pár poznámok k druhom Pterinopelma longisternale a Pterinopelma roseum + ich rozlíšenie od seba.

Kód: Vybrať všetko

Dupérré, N. & Tapia, E. (2025c). On some rare mygalomorph from Ecuador, with the description of 16 new species in five families (Mygalomorphae: Actinopodidae, Barychelidae, Halonoproctidae, Idiopidae, and Theraphosidae). Taxonomy 5(3, 35): 1-68. doi: 10.3390/taxonomy5030035

This study on Mygalomorphs from Ecuador revealed an amazing unknown diversity, including the first record of the families Actinopodidae and Halonoproctidae. Here, 16 new species and one new genus are described in five families: in Actinopodidae, Actino- pus saraguro n. sp. (♀); in Barychelidae, Paracenobiopelma vesca n. sp. (♀), Strophaeus pacificanus n. sp. (♀), S. real n. sp. (♀), S. elongata n. sp. (♂♀), S. josefita n. sp. (♂♀), S. peronii n. sp. (♂♀), S. kaiae n. sp. (♀), S. subterraneus n. sp. (♂), S. spiculum n. sp. (♂), and S. kawsay n. sp. (♀); in Halonoproctidae, Ummidia pupulae n. sp. (♂); in Idiopidae, Idiops clepsydra n. sp. (♀); and in Theraphosidae, Pululahua gen. n., Pululahua kunukyaku gen. n., n. sp. (♂♀), and Pululahua winku gen. n., n. sp. (♂♀); and Thalerommata yasuni n. sp. (♂). Furthermore, images of the type specimens of Actinopus nattereri (Doleschall, 1871) and Actinopus piceus (Ausserer, 1871) are presented. Finally, the synonymy of Idiops fulvipes under Idiops argus is rejected.

Nový rod Pululahua gen. n. + druhy Pululahua kunukyaku gen. n., n. sp. (♂♀), a Pululahua winku gen. n., n. sp. (♂♀).
Nový druh Thalerommata yasuni n. sp..

Kód: Vybrať všetko

Groppo, B. B., Morales, M. J. A., Belintani, T. & Guadanucci, J. P. L. (2025). High diversity and population structure in a widespread tarantula Sickius longibulbi (Mygalomorphae: Theraphosidae). Zoologischer Anzeiger 319: 31-40. doi: 10.1016/j.jcz.2025.08.007

Sickius Soares & Camargo, 1948 is a monotypic genus (Sickius longibulbi) characterized by a broad geographic distribution across Brazil and conservative morphology. Notably, females lack spermathecae, and males possess palpal bulb with a long embolus, both traits with taxonomic importance. The genus belongs to the infraorder Mygalomorphae, a group with intricate taxonomic challenges due to uniform morphology, complicating species delimitation. In the present study, we employed an integrative taxonomic approach, combining mitochondrial DNA sequences of the Cytochrome Oxidase I (COI) gene with Fourier Elliptical Analysis of the male palpal bulb shape to investigate lineage differentiation and evolutionary patterns within the genus Sickius. We observed genetic structured populations along with morphometric variation and geographic distribution, except for the two lineages localized in northeast Cerrado. We retain S. longibulbi as a single species with great diversity and possibly undergoing a process of divergence. Future studies with larger sample sizes are encouraged to confirm these findings and further investigate the evolutionary history of the genus.

Pár poznámok o rodu Sickius (rod kde sú samice bez spermatéky).

Kód: Vybrať všetko

Signorotto, F., Ferretti, N., Chaparro, J. C., Ochoa, J. A. & West, R. (2025). The genus Thrixopelma Schmidt, 1994 from Peru: redescription of the male of T. ockerti Schmidt, 1994 (Araneae: Theraphosidae: Theraphosinae), and a new species. Arachnology 20(1): 107-114. doi: 10.13156/arac.2024.20.1.107

We redescribe and illustrate the male of Thrixopelma ockerti Schmidt, 1994 presenting the first analysis of keels on the palpal bulb. Additionally, a new species Thrixopelma kimraykawsaki sp. nov. is described and illustrated from Peru, along with data on its natural history. This new species is known from Abancay, department of Apurimac, can be distinguished from other species by having a palpal bulb bearing a tegular heel, a spatu- late embolus with well developed prolateral keels, and the pres- ence of a retrolateral keel. Females are differentiated from other known Thrixopelma species by the shape of the spermathecae and the number of labial cuspules.

Reopis samca Thrixopelma ockerti, nový druh Thrixopelma kimraykawsaki.

Kód: Vybrať všetko

Bertani, R., Antunes, V. S. & Gallão, J. E. (2025). A new species of tiny arboreal tarantula of the genus Typhochlaena C. L. Koch, 1850 (Araneae, Theraphosidae) from the State of Bahia, Brazil. Zootaxa 5660(1): 102-110. doi: 10.11646/zootaxa.5660.1.6

The genus Typhochlaena C. L. Koch, 1850 comprises five species of tiny arboreal theraphosids found exclusively in Brazil. Some species have a colored, eye-catching pattern which make them an object of desire to the pet market, and two species were included in the Red Book of Threatened Brazilian Fauna by the Brazilian government. Typhochlaena was recovered as the sister group of the remaining aviculariines in phylogenetic analyses, as the genus retains several plesiomorphies and represents a distinct and old divergent clade. Therefore, it is important to obtain information about their species concerning distribution, habits and biology to aid in protecting their populations and species. Herein, we describe Typhochlaena chapadensis sp. nov., from the Brazilian State of Bahia, in the Chapada Diamantina region. The new species is closely related with T. curumim Bertani, 2012 but can be distinguished by the shape of the male palpal bulb, color pattern and geographic distribution.

Nový druh Typhochlaena chapadensis.

Kód: Vybrať všetko

Smith, A. M., Daniel, B. A. & Vignaud, B. (2026). Nomenclatural notes on the Ornithoctoninae genera Cyriopagopus Simon 1887, Haplopelma Simon 1892 and Melopoeus Pocock 1895 (Araneae: Theraphosidae) with the intention of restoring the genera Haplopelma and Melopoeus. Journal of the British Tarantula Society 40(3): 15-28.

Abstract Based on the examination, in September 2001, of material, found in a jar labelled Tavoy at the Zoological Survey of India – Kolkata, a badly damaged, fragmentary juvenile theraphosid specimen was found by Smith & Daniel, (with the label 1861/18) which was believed by Smith to be the type of Cyriopagopus paganus Simon 1887. In the same jar were two adult female specimens, collected at the same location in 1914, which Gravelly 1917 had identified as Melopoeus Pocock 1895 – a genus which, by September 2001, was deemed to be (by Raven 1985) a junior synonym of Haplopelma Simon 1892. Both of these specimens can still be found in the National Zoological Collection of the Zoological Survey of India (NZC-ZSI) collection.

Poznámky ku Haplopelma doriae, opätovné zavedenie rodu Melopoeus (dotetaz ako sysnonymum pre Cyriopagopus) sem patrí aj Melopoeus lividus (ex Haplopelma lividum)

Kód: Vybrať všetko

Beratz, M., Ferretti, N. E., Chaparro, J. C., Ochoa, J. A., Allen, J. P. & West, R. C. (2026a). A new endemic genus of tarantula (Theraphosidae, Ischnocolinae) from southern Peru. Zoosystema 48(9): 273-286. doi: 10.5252/zoosystema2026v48a9

ABSTRACT We propose establishing a new genus of mygalomorph spiders in the family Theraphosidae Thorell, 1869, from the Province Calca, Department of Cusco, Peru. The monotypic genus Allpamayu n. gen. with its type species Allpamayu suyuwixsa n. gen, n. sp. is described. Allpamayu n. gen. differs from the known Ischnocolinae Simon, 1892 by the following unique combination of characters: abdo- men with stripes, labium with a low number of cuspules, and clavate trichobothria on tarsi forming two parallel rows along half of tarsus length. Additional characters are palpal bulb of males with two keels, metatarsal ventral tumescence on the first pair of legs, cymbium with long erected setae, sper- mathecae of females with large subquadrate receptacles and a short wide duct oriented laterally and pointing upwards carrying two to three rounded lobes.

Nový rod s druhom Allpamayu suyuwixsa.

Kód: Vybrať všetko

Gallon, R. C. & Sherwood, D. (2026). Taxonomic notes on the tarantula genus Heterothele Karsch, 1879 (Araneae: Theraphosidae) with a new synonymy, resurrection of H. longipalpis Karsch, 1879, two nomina dubia, and description of a new species from Tanzania. Arachnology 20(4): 623-639. doi: 10.13156/arac.2026.20.4.19

The historically enigmatic yet distinctive genus Heterothele Karsch, 1879 is revised. Heterothele affinis Laurent, 1946 syn. nov. is proposed as a junior synonym of Heterothele honesta Karsch, 1879. Heterothele longipalpis Karsch, 1879 stat. rev. et comb. nov. is revalidated from the synonymy with H. gabonen- sis (Lucas, 1853), and H. villosella Strand, 1907 stat. rest. is revalidated from its previous status as a nomen dubium. Con- versely, H. ogbunikia Smith, 1990 is proposed as a species inquirenda based on the fact it is not an adult female, but rather an immature male, and H. atropha Simon, 1907 and H. decem- notata (Simon, 1891) are proposed as nomina dubia. Redescrip- tions of the type specimens of H. honesta Karsch, 1879 (type species), H. darcheni (Benoit, 1966), H. hullwilliamsi Smith, 1990, H. longipalpis Karsch, 1879 stat. rev. et comb. nov., H. ogbunikia Smith, 1990 species inquirenda, and H. spinipes Pocock, 1897 are presented. Heterothele maxima sp. nov. from Tanzania is described as new.

Heterothele affinis považované za mladšie synonymum Heterothele honesta.

Heterothele longipalpis bol vyňatý zo synonyma pre H. gabonensis.

Reopis Heterothele villosella - pretým nomen dubium.

H. ogbunikia - považovaný za species inquirenda. H. atropha a H. decemnotata považovaný za nomina dubia.

Reopis H. honesta Karsch, 1879 (typový druh), H. darcheni (Benoit, 1966), H. hullwilliamsi Smith,1990, H. longipalpis.

Nový druh Heterothele maxima.

Kód: Vybrať všetko

Galleti-Lima, A., Yamamoto, F. U., Lucas, S. M., Guadanucci, J. P. L. & Brescovit, A. D. (2026). Morphological revision of the species of Homoeomma Ausserer, 1871 (Araneae: Theraphosidae) from Brazil, Argentina and Uruguay. Zootaxa 5752(2): 211-237. doi: 10.11646/zootaxa.5752.2.3

The Neotropical tarantula genus Homoeomma Ausserer, 1871 is reviewed. After examining type specimens and redescribing several species, H. stradlingi O. Pickard-Cambridge, 1881 and H. strabo (Simon, 1892) are considered junior synonyms of H. familiare Bertkau, 1880; henceforth, the senior synonym of the type species of the genus, and now with a known male representative. H. nigrum is considered nomem dubium. Additionally, Homoeomma hirsutum (Mello-Leitão, 1935) is considered junior synonym of H. montanum (Mello-Leitão, 1923). We also describe the female of H. brasilianum (Chamberlin, 1917). Homoeomma now comprises 12 valid species distributed across Argentina, Brazil, Chile, Colombia, and Uruguay.

H. stradlingi O. Pickard-Cambridge, 1881 a H. strabo sú považované za mladšie synonymum Homoeomma familiare.

H. nigrum je považované za nomem dubium.

Homoeomma hirsutum je považované za mladšie synonymum H. montanum.

Reopis H. brasilianum.

Kód: Vybrať všetko

Ouakri, N., Lecigne, S., Abou Oualid, J. & Dugon, M. (2026). Spiders from the Arganeraie Biosphere Reserve of Souss-Massa region (Morocco), and descriptions of two new species (Arachnida: Araneae: Gnaphosidae, Salticidae). European Journal of Taxonomy 1051: 1-50. doi: 10.5852/ejt.2026.1051.3261

Abstract. This study presents a preliminary faunistic survey of spiders from the Arganeraie Biosphere Reserve in the Souss-Massa region of Morocco covering 39 species across 17 families collected between January 2022 and June 2025. Two species are new to science: Cesonia africana Lecigne & Ouakri sp. nov. and Menemerus currens Lecigne sp. nov. Five other species are new records for Morocco, i.e., Nemesia uncinata Bacelar, 1933, Phlegra yaelae Prószyński,1998, Mogrus sahariensis Berland & Millot, 1941, Cebrennus laurae Jäger, 2014 and Polenecia producta (Simon, 1873). Several other species, already known from Morocco, are noteworthy taxa, e.g., Aelurillus hirtipes Denis, 1960, Cebrennus rungsi Jäger, 2000, Eresus elhennawyi Řezáč, Vaněk & Střeštík, 2023, Oecobius machadoi Wunderlich, 1995, Olios pictus (Simon, 1885) and Steatoda ingeae Van Keer, 2024. The following new synonym is proposed: Zelotes oryx (Simon, 1880) = Zelotes tragicus (O. Pickard-Cambridge, 1872) syn. nov. Our findings expand our knowledge of Moroccan spiders and highlight the biodiversity of historically poorly studied habitats, thus warranting further, targeted research.

Info o Ischnocolus mogadorensis.

Kód: Vybrať všetko

Marquezin-Gomes, A. G., Galleti-Lima, A., Morales, M. J. A. & Guadanucci, J. P. L. (2026). Testing the limits of morphology: a comprehensive morphometric study of the sister lineages Lasiocyano Galleti-Lima, Hamilton, Borges and Guadanucci, 2023 and Lasiodora C. L. Koch, 1850 (Theraphosidae, Mygalomorphae). Journal of Morphology 287(4, e70123): 1-14. doi: 10.1002/jmor.70123

ABSTRACT Morphological conservatism and homoplasy pose significant challenges for the systematics of mygalomorph spiders, limiting the number of reliable morphological characters available for species identification, particularly in Theraphosidae. Closely related taxa frequently display high phenotypic similarity, which limits the resolution of morphology‐based approaches. In this study, we conducted the most extensive morphometric analysis to date within Theraphosidae, with the objective of explicitly testing how much morphological information is retained within the Lasiocyano sazimai and Lasiodora lineage. We applied a morphometric framework combining linear morphometry and geometric morphometry, including multivariate statistics, discriminant analyses, and cross‐validation, to evaluate interspecific differentiation in this group. Although some analyses recovered statistically significant differences among taxa, extensive morphological overlap, high intraspecific variation, and pronounced overfitting in cross‐validated classifications consistently reduced the discriminatory power of the methods. As a result, none of the approaches provided reliable diagnostic separation between Lasiocyano sazimai and Lasiodora species. Our results indicate that morphology alone reaches clear limits of resolution within this lineage. The only characters that remained consistently informative for distinguishing the genera were the presence of stridulatory setae in Lasiodora and the distinctive blue‐purplish setae of Lasiocyano. By explicitly testing the limits of morphometric and morphological inference in a mor- phologically conservative group, this study helps clarify the actual scope and limitations of morphology‐based systematics in Theraphosidae.

Porovnanie rodov Lasiocyano (ex Pterinopelma sazimai) a Lasiodora.

Kód: Vybrať všetko

Sherwood, D., Gabriel, R., Peñaherrera-R., P., Brescovit, A. D. & Lucas, S. M. (2026a). Redescription of Nhandu chromatus Schmidt, 2004 stat. rest. and revalidation of Nhandu sylviae Sherwood, Gabriel & Brescovit, 2023 stat. rest. (Araneae: Theraphosidae). Arachnology 20(4): 519-526. doi: 10.13156/arac.2026.20.4.4

Nhandu chromatus Schmidt, 2004 stat. rest. is redescribed based on the holotype male and new non-type female material, with its generic position discussed. Nhandu sylviae Sherwood, Gabriel & Brescovit, 2023 stat. rest. is restored, reversing its synonymy with Vitalius sorocabae (Mello-Leitão, 1923).

Reopis Nhandu chromatus.

Nhandu sylviae bol vyňatý ako synonymum ku Vitalius sorocabae.

Kód: Vybrať všetko

Wang, Z. Y., Yao, Y. B., Huang, S. H., Gong, J. X., Yu, H. Y. & Liu, K. K. (2026b). A new species of Phlogiellus Pocock, 1897 from China (Araneae: Theraphosidae). Zootaxa 5760(3): 349-360. doi: 10.11646/zootaxa.5760.3.3

A new species of theraphosid spider, Phlogiellus hakka Yao, Gong, Yu & Liu, sp. nov., is described from Fujian Province, southern China, based on both male and female specimens. This represents the first record of the genus Phlogiellus Pocock, 1897 from Fujian Province. Detailed morphological descriptions, supported by digital images (including SEM), and information on its natural habitat are provided. The discovery of P. hakka sp. nov. fills a significant distributional gap along the southeastern coast of China and is discussed in relation to the known biogeography of the genus in the region.

Nový druh Phlogiellus hakka.

Diskusné FÓRUM o vtáčkaroch

Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov

Re: Novinky v taxonomii a vo svete vtackarov