Opsiini, Emeljanov, 1962

Cao, Wenjun & Xing, Jichun, 2022, Japananoides, a new leafhopper genus from China (Hemiptera: Cicadellidae: Deltocephalinae), Zootaxa 5154 (3), pp. 345-354 : 348

Key to genera of Opsiini from China

(modified from Dai et al. 2010a)

1. Subgenital plates with macrosetae........................................................................ 2

- Subgenital plates without macrosetae (Eremophlepsiina)........................................ Pseudophlepsius

2. Mesal margin of eye notched, single T-branched shaft arising from base of aedeagus, with shaft branches forming semicircle (Circuliferina).............................................................................. Neoaliturus

- Mesal margin of eye not notched, aedeagal shafts arising from base separately (Opsiina)............................ 3

3. Subgenital plate with an additional lateral plate at base................................................. Alishania

- Subgenital plate without additional lateral plate............................................................. 4

4. Pygofer with paired sharp lateral process arising ventrally................................................. Norva

- Pygofer without process................................................................................ 5

5. Crown, pronotum, scutellum and forewings with a few or not brown spots........................................ 6

- Crown, pronotum, scutellum and forewings with numerous scattered brown spots.................................. 8

6. Aedeagal socle swollen and bulbous.................................................................. Opsius

- Aedeagal socle not swollen............................................................................. 7

7. Aedeagal shafts with a subapical process........................................................... Japananus

- Aedeagal shafts with three or four subapical processes...................................... Japananoides gen. nov.

8. Forewings with a triangular marble pattern forming in the middle of a darker rhomboidal spot when wings at rest..................................................................................................... Hishimonus

- Forewings without triangular marble pattern forming in the middle of a darker rhomboidal spot when wings at rest........ 9

9. Aedeagus with atrium extending ventrad of shafts....................................................... Litura

- Aedeagus with atrium not extending ventrad of shaft........................................................ 10

10. Aedeagus without basal process arising from socle.......................................................... 11

- Aedeagus with basal process arising from socle............................................................ 12

11. Forewings with symmetrical longitudinal orange stripes.............................................. Yinformibus

- Forewings without symmetrical longitudinal orange stripes............................................... Orosius

12. Aedeagus with two or three pairs of shafts...................................................... Hishimonoides

- Aedeagus with pair of shafts divided near base......................................................... Introrsa