Key to Chinese species of Gibberifera based on characters of male genitalia

1. Cucullus oblong...................................................................................... 2

- Cucullus oval........................................................................................ 7

2. Vesica without non-deciduous cornuti..................................................................... 3

- Vesica with non-deciduous cornuti....................................................................... 5

3. Uncus not bifurcated apically......................................................... G. clavata Zhang & Li

- Uncus bifurcated apically.............................................................................. 4

4. Uncus deeply bifurcated, two arms U-shaped................................ G. simplana (Fischer von Röslerstamm)

- Uncus shallowly bifurcated, two arms not U-shaped................................. G. qingchengensis Nasu & Liu

5. Uncus bifurcated apically............................................................. G. glaciata (Meyrick)

- Uncus not bifurcated apically........................................................................... 6

6. Uncus blunt and round apically; vesica with two or more (not arranged in pairs) non-deciduous cornuti................................................................................................... G. monticola Kuznetzov

- Uncus with straight end; vesica with four (arranged in two pairs, one pair longer than another) non-deciduous cornuti...................................................................................... G. tetracornata sp. nov.

7. Vesica with non-deciduous cornuti....................................................................... 8

- Vesica without non-deciduous cornuti............................................... G. yadongensis Nasu & Liu

8. Inner edge of cucullus with a prominence; vesica with two or three non-deciduous cornuti....................................................................................................... G. hepaticana Kawabe & Nasu

- Inner edge of cucullus lacking prominence; vesica with seven non-deciduous cornuti........... G. mienshana Kuznetzov