Key to species of genus Cyrtopsis Bey-Bienko

1. Hind process of male 10th abdominal tergite without lobate expansion, cerci longer bearing an inner lobe; female unknown......................................................................... Cyrtopsis scutigera Bey-Bienko, 1962

- Hind process of male 10th abdominal tergite with lobate expansion, cerci shorter; subgenital plate of female swell or unknown.................................................................................................... 2

2. Hind process of male 10th abdominal tergite bearing a cracked finger-shaped dorsal protrusion, cerci clavate but apex expanded; female unknown................................................ Cyrtopsis robusta Liu & Zhang, 2007

- Hind process of male 10th abdominal tergite without finger-shaped dorsal protrusion, base of male cerci stout; subgenital plate of female swollen..................................................................................... 3

3. Vertex with a ‘T’ marking; apex of male cerci developed as 2 faint angles; female subgenital plate transverse................................................................................ Cyrtopsis t-sigillata Liu, Zhou & Bi, 2010

- Vertex with irregular markings........................................................................... 4

4. Apex of male cerci bifurcate; subgenital plate of female elongate, terminally truncate......... Cyrtopsis furcicerca sp. nov.

- Apex of male cerci pointed; subgenital plate of female transverse, hind margin with a median incision.......................................................................... Cyrtopsis bivittata (Mu, He & Wang, 2000) comb. nov.