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The South American goblin spiders of the new genera Pseudodysderina and Tinadysderina (Araneae, Oonopidae). (American Museum novitates, no. 3787)

Show simple item record Platnick, Norman I. Berniker, Lily. Bonaldo, Alexandre B. Goblin Spider Planetary Biodiversity Inventory. 2013-11-12T14:30:32Z 2013-11-12T14:30:32Z 2013-11-08
dc.description 43 pages : illustrations (some color) ; 26 cm. Part of the oonopid PBI project. (Acknowledgments) en_US
dc.description.abstract A new genus, Pseudodysderina, is established for a group of species that resemble those of Dysderina Simon in having grooves connecting both the anterior and posterior spiracles. These spiders have transverse ridges on the sternum but lack the sternal excavations that characterize Dysderina and are instead united by the highly modified mouthparts of males: the labium is greatly enlarged, with a dorsoventrally flat, posterior portion that extends far posterior of the anterolateral corners of the sternum, and the endites are each deeply excavated, medially around the sides of the labium and laterally around the base of the palpal trochanter. Dysderina desultrix (Keyserling), from Peru, is transferred to Pseudodysderina and chosen as the type species; its male is described for the first time. This species has been taken by canopy fogging and beating foliage as well as in leaf litter, and appears to be widespread in the Amazonian portions of Colombia, Ecuador, Peru, and Brazil. Seven more narrowly distributed new species are described from Peru (P. manu), Bolivia (P. yungas, P. beni), Ecuador (P. hermani), Colombia (P. suiza, P. dracula), and Brazil (P. utinga). The six new species assigned to the new genus Tinadysderina resemble those of Dysderina and Pseudodysderina, but have a much smaller, simpler, weakly sclerotized embolus; they are known only from the western slopes of the Andes in Ecuador (T. tinalandia, T. otonga) and Colombia (T. planada, T. gorgona, T. bremen, T. pereira). en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates, no. 3787. en_US
dc.subject Pseudodysderina. en_US
dc.subject Tinadysderina. en_US
dc.subject Oonopidae. en_US
dc.subject Spiders. en_US
dc.subject Amazon River Region. en_US
dc.subject Andes. en_US
dc.title The South American goblin spiders of the new genera Pseudodysderina and Tinadysderina (Araneae, Oonopidae). (American Museum novitates, no. 3787) en_US
dc.title.alternative Pseudodysderina and Tinadysderina. en_US

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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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