Descriptions of undescribed sexes of Theraphosidae spiders (Mygalomorphae: Plesiopelma, Tmesiphantes) from northern Argentina

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Descriptions of undescribed sexes of Theraphosidae spiders (Mygalomorphae: Plseiopelma, Tmesiphantes) from northern Argentina

Abstract

Females previously unknown from two Argentinean tarantula (Theraphosidae), Plesiopelma paganoi Ferretti & Barneche, 2014 and Tmesiphantes crassifemur (Gerschman & Schiapelli, 1960) are described for the first time. 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 diagnosis are presented and a distribution map of both species.

Ferretti, N., & Beratz, M. (n.d.). Descriptions of undescribed sexes of Theraphosidae Spiders (Mygalomorphae: Plseiopelma, Tmesiphantes) from Northern Argentina. Revista del Museo Argentino de Ciencias Naturales. https://revista.macn.gob.ar/index.php/RevMus/article/view/890