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.
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.
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
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).
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 of a new species of Holothele (Arachnida, Araneae, Mygalomorphae,
Theraphosidae) from Guadeloupe (FWI) and comments on the distribution of the
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
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 Ornithoctonus aureotibialis sp. n. can be distinguished from all other sp. n. can be distinguished from all other Ornithoctonus Ornithoctonus species by an orange – golden 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 Ornithoctonus aureotibialis sp. n., is long time known in pet trade as sp. n., is long time known in pet trade as Haplopelma Haplopelma sp. “aureopilosum”. It was recently 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).
The female of a new Haplopelma sp. from South-East Asia is described. It belongs to the H. minax group. Its simple fused spermathecae (fig. 1) cannot be distinguished from those of H. minax (THORELL, 1897) and H. Iividum SMITH, 1996. Leg IV is a little longer than leg I. The position of the thorn-like coxal spines on the prolateral face of the palp and their size are quite different from those of the other species of the H. minax-group (fig. 2). The male is known, but could not be studied. The species name H. vonwirthi sp. n. is proposed.
A new species, Phormictopus auratus
, is described. This species is character-
ized by presenting the apex of the retrolateral branch of the tibial spurs fla-
ttened, on which the metatarsus I makes contact when flexed; also by posses-
sing spermathecae well defined in three parts: the base, neck and fundus, and
finally for having the carapace covered by a fine and dense golden pubescence.
Natural history data of this species, collected in various regions of central-
eastern Cuba, are given. With this, the registered number of Cuban taxa pertai-
ning to the genus Phormictopus
is increased to four.
The genus Cyriocosmus
Simon, 1903 is revised based on most types and additional material from Argentina, Brazil, Colombia, Tobago Island and Venezuela. Two species are newly described from Brazil: Cyriocosmus
nogueira-netoi and Cyriocosmus fernandoi
. The species Cyriocosmus fascia-tus
(Mello-Leitão, 1930), formerly synonymized with Cyriocosmus elegans
, is revalidated. Metrio-pelma nigriventris
(Mello-Leitão, 1939) and Cyriocosmus butantan
Pérez-Miles, 1998 are transferred to Hapalopus
Ausserer, 1875, proposing Hapalopus nigriventris
(Mello-Leitão, 1939) new combination and Hapalopus butantan
(Pérez-Miles, 1998) new combination. The female of Hapalopus butantan
is described for the first time. All 11 species of Cyriocosmus
are diagnosedand keyed. A cladistic analysis with 28 characters and 19 taxa was carried out. Searches using three phylogenetic packages found a single, totally resolved tree with the same topology.
A new species of tarantula, Coremiocnemis tropix
(Araneae, Mygalomorphae, Theraphosidae) is described from northern Australia; it is the first record of the genus outside of Malaysia. New hair types on legs of the Selenocosmiinae are figured.
A new species of Aphonopelma Valley of Mexico is described. It is morphologically related to Aphopelma crinitum from the shape of the bulb of the male and female spermathecae. Two changes are also proposed Brachypelma gender as a result of the review of several specimens Aphonopelma albiceps (Pocock 1903) is
Brachypelma Simon relocated in 1891 and stands as Brachypelma ruhnaui junior synonym of Brachypelma albiceps Pocock 1903.
The male of Aenigmarachne sinapophysis from Costa Rica is described. It is a small theraphosinae species belonging to the group where type VI urticating hairs are present. These spiders are distributed in Mexico and Central America. A. sinapophysis is the only species where the urticating hairs of that type are distally bent. In A. sinapophysis tibial spurs are absent. This species has a very long and bent embolus. The female is unknown. Therefore the relationship to other Central American genera of Theraphosinae has to remain vague for the time being.
The new Ischnocolinae genus Catumiri
is described. The species Cenobiopelma argentinense
(Mello-Leitão, 1934), considered a junior synonym of Oligoxystre Vellard
, 1924, is transferred to the present genus. Three new species are also described: C. chicaoi
n. sp., from south of Bahia, Una; C. petropolium
n. sp., from Petrópolis, Rio de Janeiro (type species); and C. uruguayense
n. sp., from Lavalleja, Uruguay. Diagnosis, zoogeographical distribution and an identification key are provided for all species.
In this paper a new species of Brachypelma
from Mexico, Brachypelma schroederi
sp. n., is described. A division of the genus in two groups without any intention on systematics is proposed: the "emilia"-complex, containing colorfull spiders, and the "vagans"-complex consisting of species characterized by the more or less monotone coloration of their integuments.
A well known Brachypelma
sp. often mistakenly called Aphonopelma pallidum
(F.O.P.-CAMBRIDGE, 1897) by some tarantula keepers and arachnologists, portrayed by VERDEZ in 2001 and by KLAAS in 2003 has proved being undescribed up to now. Males and females are almost entirely black with red and red orange setae on the dorsal face of the opisthosoma and the legs. In the females one can see a quite black triangle on the anterior face of the carapace as in B. emilia (WHITE, 1856). The species here described is named B. verdezi in honour of the French arachnologist J.M.VERDEZ who recognized the first that it is an undescribed Brachypelma
The genus Stenotarsus gen. nov. closely related to Aphonopelma Pocock, 1901 is established for South American species formerly desgnated as Eurypelma group A according to SIMON 1892 where metatarsus I containing many spines is as long as or not as long as tibia I. It differs from Aphonopelma by a procurved fovea (fig. 13), urticating hairs of type 1 and 3, a distally widened embolus (fig. 3) and spermathecae widely fused (fig. 19 - 21) with two little heads of different shape. S scissistylus is a medium-sized species. It's embolus appears deeply rutted (fig. 4) The relations to other species living in the Guyanas, North Brazil and Venezuela are discussed.
The monotypic Brazilian genus Sickius
Soares & Camargo 1948 is revalidated, rediagnosed, and tentatively transferred to the Ischnocolinae
. The formerly unknown female of S. longibulbi Soares & Camargo 1948 is found to lack spermathecae. This unusual genital feature, not found in any other mygalomorph spider species, is described and discussed.