A revision of the spider genera Chaetopelma Ausserer 1871 and Nesiergus Simon 1903 (Araneae, Theraphosidae, Ischnocolinae)
José Paulo Leite Guadanucci, Richard C Gallon ,2008
Chaetopelma Ausserer 1871 and Nesiergus Simon 1903 are revised. Cratorrhagus Simon 1891 is considered a junior synonym of Chaetopelma. Cratorrhagus tetramerus (Simon 1873) and the female of Cratorrhagus concolor (Simon 1873) are conspecific with C. olivaceum (C. L. Koch 1841). Ischnocolus gracilis Ausserer 1871, Ischnocolus syriacus Ausserer 1871, Chaetopelma shabati Hassan 1950 and Ischnocolus jerusalemensis Smith 1990 are also treated here as junior synonyms of C. olivaceum. Chaetopelma adenense Simon 1890 is proposed as a junior synonym of Ischnocolus jickelii L. Koch 1875. Chaetopelma gardineri Hirst 1911 is transferred to Nesiergus. Hence, Chaetopelma comprises three valid species: C. olivaceum (C. L. Koch 1841); C. karlamani Vollmer 1997; C. concolor (Simon 1873) n. comb. from the Middle East and northeastern Africa. Nesiergus, which appears endemic to the Seychelles archipelago, now comprises three valid species: N. gardineri (Hirst 1911) n. comb.; N. halophilus Benoit 1978; N. insulanus Simon 1903.Revision of the genus Tmesiphantes Simon (Araneae, Mygalomorphae, Theraphosidae)
Flávio Uemori Yamamoto, Sylvia M. Lucas, José Paulo Leite Guadanucci, Rafael Prezzi Indicatti ,2007
The genus Tmesiphantes Simon, 1892 is revised. The type-species, T. nubilus Simon, 1892, is redescribed and three new species are described from the state of Bahia, Brazil: T. amadoi sp. nov., T. bethaniae sp. nov. and T. caymmii sp. nov. In addition, Tmesiphanthes physopus Mello-Leitão, 1926 and T. minensis Mello-Leitão, 1943 are transferred to Plesiopelma Pocock, 1901. T. chickeringi is considered species inquirenda.A new species of the genus Plesiophrictus (Araneae: Theraphosidae: Ischnocolinae) from western Ghats, India
Manju Siliwal, Sanjay Molur, Robert John Raven ,2007
The genus Plesiophrictus belongs to the subfamily Ischnocolinae of the mygalomorph family Theraphosidae and is reported from China, India, Micronesia and Sri Lanka (Platnick, 2007). Amongst the Indian genera of the family Theraphosidae, Plesiophrictus is a relatively species-rich genus (Siliwal et al., 2005; Siliwal & Molur, 2007). Pocock (1899) established the genus Plesiophrictus with description of three species, P. millardi and P. collinus from India and P. tenuipes from Sri Lanka, assigning P. millardi as the type species. Later, a number of new species were described from India under this genus (Pocock, 1900; Gravely, 1915, 1935; Tikader, 1977). After the establishment of the genus Plesiophrictus, the two Indian species, Ischnocolus linteatus Simon, 1891 and Stichoplastus fabrei Simon, 1892 were transferred to this genus by Pocock (1900) and Simon (1903), respectively. This genus was considered endemic to South Asia until the Micronesian species Ischnocolella senffti Strand, 1907 was transferred to this genus by Roewer (1963). Recently, Yin & Tan (2000) described a new species, P. guangxiensis from China. Till date, 16 species have been reported under this genus from the world, of which 13 are endemic to India, one endemic each to China and Sri Lanka and one endemic to the islands of Micronesia (a conglomerate of 9 countries) (Platnick, 2007). Most of the species described from India are known only from the type localities; information on range and geographical variations are limited. More than fifty percent of the species were described a century ago based on very few morphological characters, missing details used in present day taxonomy like morphometry of legs, description of genital structure especially of female, illustrations, sternum, male palp and female spermatheca (see Simon, 1891, 1892; Pocock, 1899, 1900; Strand, 1907; Gravely, 1915, 1935). The more recent descriptions of P. meghalayaensis and P. mahabaleshwari by Tikader (1977) are also incomplete as they lack morphometry of legs, comparison with other species and diagnosis for the species. This paper is an effort to describe a new species based on a female specimen after comparing the available prominent characters with other known species. The objective of this paper is not only to describe a new species, but also provide South Asian arachnologists with a standard description pattern on theraphosids or any mygalomorph spider along with pictures (see Images in the web supplement) in addition to figures as a useful tool for comparative studies. None of the past descriptions of Plesiophrictus spp. includes notes on natural history or ecology, which we have added as noted during our study.A revision of the Neotropical spider genus Oligoxystre Vellard 1924 (Theraphosidae, Ischnocolinae)
José Paulo Leite Guadanucci ,2007
The genus Oligoxystre Vellard 1924 is revised. Pseudoligoxystre Vol 2001 is synonymized with Oligoxystre and its typespecies, P. bolivianum Vol 2001, is considered valid. The type-specimen of Oligoxystre auratum Vellard 1924, type-species by original designation, is considered lost. No additional material matching the original description was found and therefore the species is diagnosed from the original description. Four new species, all from Brazil, are also described: O. caatinga, O. dominguense, O. tucuruiense, and O. rufoniger. Data on natural history of O. bolivianum from field and captivity observations are presented. The genus Cenobiopelma Mello-Leitão & Arlé 1934 ) is based upon Cenobiopelma mimeticum Mello-Leitão & Arlé 1934 for which no type was ever designated and hence both are considered nomina nuda.Cyriocosmus perezmilesi sp. n. from Bolivia (Araneae: Theraphosidae: Theraphosinae)
Radan Kaderka ,2007
Cyriocosmus perezmilesi sp. n. from Bolivia, Beni province, is described, diag- nosed and keyed inside the inner group of Cyriocosmus Simon 1903 which is represented by species with reduced paraembolic apophysis in male palpal bulb structures. The new species can be distinguished from all other cogeners, ex- cept C. blenginii Pérez-Miles 1998, by uniformly coloured carapace and lateral four-striped pattern on abdomen. C. perezmilesi sp. n. differs from C. blenginii by presence of the reduced paraembolic apophysis and bicolour femora (reddish brown, distally black).Description of Guyruita gen. nov. and two new species (Ischnocolinae, Theraphosidae)
José Paulo Leite Guadanucci, Sylvia M. Lucas, Rafael Prezzi Indicatti, Flávio Uemori Yamamoto ,2007
The genus Guyruita gen. nov. and two new species from Brazil are described. Holothele waikoshiemi (Bertani & Araújo, 2005) from Venezuela is transferred here to the new genus. Guyruita gen. nov. differs from the remaining Ischnocolinae by the following features: labium densely occupied by a lot of cuspules (more than 100), intercheliceral intumescence absent, posterior sternal sigilla remote from margin, tarsal claws without teeth, tarsal scopula I-II undivided (tarsus II with a line of sparse setae, which does not divide the scopula), III-IV divided.Eine neue Psalmopoeus-Art aus Venezuela, Psalmopoeus langenbucheri sp. n. (Araneae: Theraphosidae: Aviculariinae)
Gunter Schmidt, Michael Bullmer, Martin Thierer-Lutz ,2006
Psalmopoeus langenbucheri sp. n. differs from most Psalmopoeus spew des yet known in its small size. The body length of the female (holotype) is 37,0 mm and of the male 21 ,5 mm (without chelicera and spinnerets). Its pal pal bulb with the long and thin embolus is similar to that of some species of Tapinauchenius , its length is 3,5 mm. In the female the length of the receptacula seminis is 1,6 mm, the spermathecae belong to the P. reduncus- type. There are some differences between the spermathecae of subadult and adult females.Megaphobema teceae n. sp. (Araneae, Theraphosidae), a new theraphosine spider from Brazilian Amazonia
Fernando Pérez-Miles, Laura Tavares Miglio, Alexandre Bonaldo ,2006
A new species from Juruti River Plateau, Juruti, Pará, Brazil that fits the generic characters of Megaphobema is described. Megaphobema teceae n. sp. differs from the other four species known in this genus mainly by the presence of a conspicuous post-ocular process. This is the first record of the genus to both oriental Amazon and Brazil.A new species of Holothele Karsch, 1879 (Theraphosidae, Ischnocolinae) from Venezuela
Rogério Bertani, Yelinda Araújo ,2006
Holothele waikoshiemi sp. n. (Theraphosidae, Ischnocolinae) is described based on two females and a juvenile from Venezuela. The new species is distinguished by leg I being the longest limb, incrassate tibia I and spermathecae shape.Avicularia hirschii sp. n. (Araneae: Theraphosidae: Aviculariinae), eine neue Vogelspinnenart aus Ekuador
Michael Bullmer, Martin Thierer-Lutz, Gunter Schmidt ,2006
Avicularia hirschii is one of the smaller species of the genus. The male has instead of a tibia spur a lot of thick black spines similar to those of Avicularia versicolor (Walckenaer, 1837) from Martinique and Guadeloupe. Tufts of red hairs on the tarsi and the opisthosoma arranged in two rows framing the black middle section are typical. The length of the urticating hairs of type II is 0,10 - 0,17 mm. The embolus is long and tapered. The spermathecae are similar to those of A. azuraklaasi Tesmoingt, 1996 from Peru. Juvenile spiders are almost white coloured with black stripe on the opisthosoma. There is no Christmas tree pattern as in other Avicularia species.Neue Erkenntnisse zur Vogelspinnen -- Unterfamilie Ornithoctoninae, mit Beschreibung von Ornithoctonus aureotibialis sp. n. und Haplopelma longipes sp. n. (Araneae, Theraphosidae)
Volker von Wirth, Boris F Striffler ,2005
New insights to the subfamily Ornithoctoninae are presented and its genera are redefined. Moreover two new species are described, which have been subject of studies by the senior author for many years.Ornithoctonus aureotibialis sp. n. can be distinguished from all other Ornithoctonus species by an orange – golden fringe of hairs on retrolateral side of patella and tibia of leg I and II. The other new species, Haplopelma longipes sp. n., is easily recognised by its very long leg IV (RF < 90) in females.Ornithoctonus aureotibialis sp. n., is long time known in pet trade as Haplopelma sp. “aureopilosum”. It was recently described by SCHMIDT & SAMM 2005 as “Haplopelma chrysothrix”, a name, which is not available according to the ICZN, as no type depository was included in the description. The same happened with “Haplopelma vonwirthi” SCHMIDT 2005, which is unavailable as well, but is most probably a synonym of Haplopelma minax(THORELL 1897).On a new genus and species of theraphosid spider from Serpent Island, Mauritius (Araneae, Theraphosidae, Eumenophorinae)
Richard C Gallon ,2005
A new genus and species of theraphosid, Mascaraneus remoras, is described from Serpent Island, Mauritius. The new species, although eumenophorine. lacks stridulatory setae, but plesiomorphically retains divided metatarsal scopulae on leg IV and distal clavate trichobothria on the tarsi. It is the first theraphosid spider recorded from the Mascarene Islands. Its biogeography and taxonomy are discussed.Description d'une nouvelle espèce d'Holothele (Arachnida, Araneae, Mygalomorphae, Theraphosidae) de Guadeloupe (Antilles françaises) et commentaires sur la répartition du genre
Patrick Maréchal ,2005
Description of a new species of Holothele (Arachnida, Araneae, Mygalomorphae, Theraphosidae) from Guadeloupe (FWI) and comments on the distribution of the genus.
A new species of the family Theraphosidae, Holothele sulfurensis n. sp., is described from the Soufrière area in Guadeloupe (FWI). The distinctive taxonomic characters are: scopulate metatarsi IV, divided scopula on tarsi I, straight fovea, and simple, long and digitiform spermathecae. Its biology, compared with those of the other species of the recently revised genus, allows some remarks on the distribution of the genus Holothele Karsch, 1879 in the West Indies.