Tridysderina, Platnick & Berniker, 2013

Platnick, Norman I. & Berniker, Lily, 2013, The South American goblin spider genera Dysderina and Tridysderina (Araneae, Oonopidae), American Museum Novitates 2013 (3772), pp. 1-52 : 46-47

Key to Species of Tridysderina

1. Sternum with second transverse ridge at level of coxa III (fig. 346)........................ bellavista

– Sternum with single transverse ridge at level of coxa II (fig. 302)..........................................2

2. Males (those of T. archidona and T. tena unknown).................................................................3

– Females.............................................................................................................................................5

3. Embolus widest at tip (fig. 310)........................................................................................... yasuni

– Embolus widest before tip.............................................................................................................4

4. Tip of conductor reaching to near tip of embolus (fig. 321)............................................ jatun

– Tip of conductor not reaching to near tip of embolus (fig. 332).................................. galeras 5. Apodemes long (fig. 312)..................................................................................................... yasuni

– Apodemes much shorter................................................................................................................6

6. Anterior genitalic projection protruding anterior of anterior margin of genitalic atrium (figs. 339, 340).................................................................................................................. archidona

– Anterior genitalic projection shorter............................................................................................7

7. Anterior margin of genitalic atrium rounded (figs. 323, 324).......................................... jatun

– Anterior margin of genitalic atrium squared (figs. 335, 345)..................................................8

8. Posterior margin of transverse bar connecting apodemes prolonged along midline (fig. 335).......................................................................................................................................... galeras

– Posterior margin of transverse bar connecting apodemes not prolonged along midline (fig. 345)...................................................................................................................................... tena