Carventinae

Shi, Kai, Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2020, A new apterous genus of Carventinae from China (Hemiptera: Heteroptera Aradidae), Zootaxa 4820 (2), pp. 385-390 : 389

Key to the genera of the subfamily Carventinae from Hainan Province, China

1. Macropterous........................................................................................ 2

- Apterous............................................................................................ 3

2. Genae not protruding beyond clypeus; membrane without veins................ Lissonotocoris Usinger & Matsuda, 1959

- Genae protruding beyond clypeus; membrane with distinct veins............ .................... Carventus Stål,1865

3. Spiracles II lateral and visible from above........................................... Caiaptera Bai & Heiss, 2011

- Spiracles II ventral.................................................................................... 4

4. Meso- and metanota fused to mtg I+II at middle, with a median longitudinal smooth ridge, flattened from anterior margin of mesonotum to anterior margin of tergal plate.............................. Notoplocaptera Usinger & Matsuda, 1959

- Metanotum separated from mtg I and II by thin transverse suture............................................... 5

5. Spiracles III lateral and visible from above................................... Paralibiocoris Bai, Heiss & Cai, 2018

- Spiracles III ventral or sublateral......................................................................... 6

6. Spiracles II to IV ventral, V to VII lateral and visible from above................... Crassocori s Bai, Heiss & Cai, 2007

- Spiracles II ventral, III to IV sublateral, IV at most faintly visible from above, V to VII lateral and visible from above. ..... 7

7. Pro-, meso- and metasterna fused medially, with distinct fusion suture between each other.................................................................................................. Rotundocoris Bai, Heiss & Cai, 2019

- Pro-, meso- and metasterna fused medially, without a fusion suture between each other............ Oblongocoris gen. n.