Carlos E. Valerio


Mygalomorph spiders in the Barychelidae (Araneae) from Costa Rica

Carlos E. Valerio ,1986

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 .

Arañas terafosidas de Costa Rica (Araneae, Theraphosidae). IV. Generos Metriopelma y Cyclosternum, incluyendo especies de Panama

Carlos E. Valerio ,1982

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.

Arañas terafosidas de Costa Rica (Araneae, Theraphosidae). I. Sericopelma y Brachypelma

Carlos E. Valerio ,1980

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.

Arañas terafósidas de Costa Rica (Araneae: Theraphosidae). III. Sphaerobothria, Aphonopelma, Pterinopelma, Citharacanthus, Crypsidromus y Stichoplastus

Carlos E. Valerio ,1980

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 Appendi x.

Species described or mentioned