Key to species of Pseudohermenias based on the female genitalia

1 Signum cornute............................................................................. P. hercyniana

- Signum a granulate scobination.......................................................................... 2

2 Sterigma small, not expanded laterally and posteriorly; colliculum about 1/3 times ductus bursae in length................................................................................................... P. absimilis sp. nov.

- Sterigma broad, expanded laterally or posterolaterally; colliculum about 1/4 times ductus bursae in length............... 3

3 Sterigma slightly extending laterally, without lamella postvaginalis..................................... P. ajanensis

- Sterigma with large lamella postvaginalis.................................................... P. linxica sp. nov.