Gnophopsodos

Erlacher, Sven & Erlacher, Josepha, 2016, A systematic revision of the genus Gnophopsodos Wehrli, 1945, with description of two new species (Lepidoptera: Geometridae), Zootaxa 4169 (3), pp. 435-456 : 438

Key to Gnophopsodos species (male genitalia structures)

1 Appendix aedeagi tubular and blunt, slightly shorter than corpus aedeagi........................................ 2

- Appendix aedeagi not tubular, clearly longer than corpus aedeagi.............................................. 3

2 Anterior appendices of juxta remarkably slender and cusp-like, about 6–8 costal thorns................. G. badakhshanus

- Anterior appendices of juxta moderately pointed, about 15–20 costal thorns............................... G. hilmari

3 Appendix aedeagi pincer-like incised.................................................................... 4

- Appendix aedeagi sometimes serrate but not incised......................................................... 5

4 Juxta rabbit ear-shaped incised.............................................................. G. ravistriolaria

- Juxta keyhole-shaped, saccus remarkably short.................................................... G. tholeraria

5 Appendix aedeagi spoon-shaped broadened with terminal peak..................................... G. stemmataria

- Appendix aedeagi with other characteristics............................................................... 6

6 Juxta broadly u-shaped incised.............................................................. G. gnophosaria

- Juxta undivided, caudally broadened..................................................................... 7

7 Saccus thick and straight........................................................................ G. sabine

- Saccus thin, clearly bent............................................................................... 8

8 Appendix aedeagi with smooth margin....................................................... G. fractifasciaria

- Appendix aedeagi margin at caudal end finely serrate............................................... G. puengeleri