Iassinae

Wang, Xian-Yi, Wu, Yun-Fei & Dai, Ren-Huai, 2018, Three new species of the leafhopper subfamily Iassinae (Hemiptera: Cicadellidae) from China, Zootaxa 4442 (3), pp. 378-388: 380

publication ID

https://doi.org/10.11646/zootaxa.4442.3.2

publication LSID

lsid:zoobank.org:pub:09379BA2-979C-41AC-8B04-28FDFB0AB91F

persistent identifier

http://treatment.plazi.org/id/4730878D-D959-B17A-C7A4-FF5E92A1FC1C

treatment provided by

Plazi

scientific name

Iassinae
status

 

Key to genus and tribe of Iassinae  (males) from China

1. Anterior margin of head well delimited, transition from crown to face distinctly angulate, ocelli on margin [ Krisnini  ]...... 4

- Anterior margin of head usually not well delimited, but if so, then ocelli on face below crown margin.................. 2

2. Pronotum strongly convex and declivous anteriorly; male subgenital plate short and concealed by pregenital sternite [Hyalojassini].............................................................................................. 5

- Pronotum slightly convex; male subgenital plate slender and extended beyond pregenital sternite [Iassini]............... 3

3. Style apophysis short and broad; apex of subgenital plate curved to middle............................ Iassus Fabricius 

- Style apophysis slender, elongate; apex of subgenital plate straight............................. Batracomorphus Lewis 

4. Forewings with extra crossveins in distal half ( Figs. 3, 6 View Figure ); eighth sternite wide, with many longfine setae ( Figs. 59–62 View Figure ); subgenital plates without setae laterally........................................................... Krisna Kirkaldy 

- Forewings without extra crossveins in distal half; eighth sternite wide, without setae; subgenitalplate with many short spinelike setae laterally......................................................................... Gessius Distant 

5 Subgenital plates with mesal margins convergent distally, apices strongly bent or with toothlike ventral projection................................................................................. Trocniassus Dai, Dietrich & Zhang 

- Subgenital plates with mesal margins strongly divergent distally, apices unmodified................................ 6

6. Connective well delimited, joint with aedeagus flexible ( Figs. 36 View Figure )................... Decliviassus Dai, Dietrich & Zhang 

- Connective membranous or immovably fused to aedeagus..................................................... 7

7. Sclerotized connective absent; apodeme of male style longer than apophysis ( Fig. 14 View Figure )...... Siniassus Dai, Dietrich & Zhang

- Sclerotized connective present; apodeme of male style shorter than pophysis....................................... 8

8. Forewing appendix well developed, more than half width of inner apical cell; subgenital plates close together at base or absent...................................................................................... Trocnadella Pruthi 

- Forewing appendix weakly developed, less than half width of inner apical cell; subgenital plates well separated from each other at base.......................................................................................... 9

9. Ventral pygofer process well developed; aedeagus with bidentate distal processes..................... Coriojassus Evans 

- Ventral pygofer process absent; aedeagus with distal processes, if present, without teeth................ Hyalojassus Evans