Since the beginning of 1989 a tarantula from New Guinea is imported to Germany, here and in England is sold under the name Selenocosmia lanipes Ausserer 1875. It differs
from the species of the genus by the Selenocosmia stridulations organ, the eye position
and the relative eyes Grobe. This is an undescribed species of the previously monotypic
Genus Selenotypus Pocock 1895, of which only the genotype, Selenotypus plurnipes Pocock 1895, the groBte Australian spider species from Queensland, was known.
Due to the finding of a second type, the genus diagnosis Mmust be extended.
The following is a description of a new species of mygalomorph spider from the Amazonas region of Ecuador, South America. The spider can be classified as follows; family Theraphosidae, subfamily Aviculariinae, genus Avicularia, species purpurea.
Two species of Barychelidae, Psalisto s venadensis and Trichopelma laselva, are described from Costa Rica . These are the first records Of this mygalomorph family from this country . Both species were associated with tropical wet forests .
Diagnoses (with scanning electron micrographs of relevant structures) of
genera of Dipluridae (Lathrothele, E11typesa), Hexathelidae (Heterothe/e) and
Ctenizidae (Aporoptychus) in the Musee Royal de l'AJirique Centrale are given
with notes on some species. Macrothele darche11i Benoit, 1966 is transferred to
Heterothe/e Karsoh. Relationships of those genera are discussed.
Four new species are described from Costa Rica and Panama. Metriopelma zebrata Banks is redescribed, its female being new to science. Cyclosternum fasciatus, new combination, is discussed. M. morosus Banks is reduced to synonymy of M. zebrata. An English Appendiz with keys, diagnosis and explaination to figures is included.
Seven species of Sericopelma and 3 of Brachypelma are described as
new and Brachypelma mesomelas (O.P. Cambridge), is redescribed and
discussed. All diagnosis and key in English.
Thirteen species of theraphosid spiders ("tarantulas") are described as
new. Sphaerobothria hoffmani and Aphonopelma seemannz are redescribed and the
male 01" S. seemanni is described for the first time . It is argued that the genera
discussed here, which are traditionally placed in separa te subfamilies (Grammostolinae
and Isehnocolinae) should be grouped . Common features to these
genera are the shape of the bulb (distally atenuated and curved ventrally),
spermatheea divided in two portions by a deep noteh, and coxa 1 with anterior
side covered by conic spinules. The feature formerly used to separa te the two
groups is not consistent within genera.
Keys, diagnosis and explanations to figures are included in an English
Aphonopelma burica, Aphonopelma crinirufum, Aphonopelma sclerothrix, Aphonopelma xanthochromum, Tliltocatl albopilosus, Sericopelma angustum, Stichoplastoris fossorium, Lasiodora brevibulba, Lasiodora carinata, Lasiodora icecu, Lasiodora rubitarsa, Lasiodora puriscal, Stichoplastoris denticulatus, Stichoplastoris elusinus, Stichoplastoris obelix