Dysderina

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 : 21

Key to Species of Dysderina

1. Sternum with transverse ridges (figs. 11, 64).............................................. principalis group, 2

– Sternum without transverse ridges (figs. 146, 196)....................................... tiputini group, 15

2. Males (unknown in D. erwini )......................................................................................................3

– Females (unknown in D. amaca ).................................................................................................9

3. Conductor much wider at middle than at tip (figs. 71, 99, 110).............................................4

– Conductor relatively uniform in width (figs. 88, 121, 132, 363).............................................6

4. Conductor abruptly narrowed at about half its length (fig. 99)..................................... amaca

– Conductor gradually narrowing toward tip (figs. 71, 110).......................................................5

5. Conductor with bulge on proximal side (fig. 71)...................................................... principalis

– Conductor with bulge on distal side (fig. 110)................................................................... sacha

6. Conductor much longer than embolus (fig. 88, 89)...................................................... sasaima

– Conductor otherwise (figs. 121, 122, 132, 133, 363, 364)........................................................7

7. Conductor much shorter than embolus (figs. 363, 364)................................................ cunday

– Conductor otherwise (figs. 121, 122, 132, 133...........................................................................8

8. Embolus relatively short, with notched tip (figs. 129, 132)......................................... excavata

– Embolus longer, with sinuous tip (figs. 118, 121).......................................................... baehrae