Scymnus (Parapullus)

Chen, Xiao-Sheng, Ren, Shun-Xiang & Wang, Xing-Min, 2012, Revision of the subgenus Scymnus (Parapullus) Yang from China (Coleoptera: Coccinellidae), Zootaxa 3174, pp. 22-34 : 23-24

Key to the species of Scymnus (Parapullus) from China

1. Elytra yellowish brown................................................................................. 2

- Elytra black with apical yellow........................................................................... 5

2. Edge of parameres nearly parallel in lateral view............................................................. 3

- Edge of parameres expanded, not parallel in lateral view....................................................... 4

3. Prosternal process rectangle, length 3 times width at base; parameres 2/3 length of penis guide in ventral view................................................................................................. parallelicus sp. nov.

- Prosternal process trapezoid, length 3.5 times width at base; parameres relatively broad, 3/4 length of penis guide in ventral view.................................................................................. malleatus sp. nov.

4. Penis guide slightly constricted near middle and converging gradually to a pointed tip in ventral view.................................................................................................... alishanensis Pang et Yu

- Penis guide narrowed at base, the widest at about 1/2 length and converging gradually to a pointed tip in ventral view............................................................................................. tsugae Yu et Yao

5. Elytral epipleuron and mesoventrite fuscous, metaventrite black except metepisternum fuscous.............. solus sp. nov.

- Elytral epipleuron black or fuscous with both margins black.................................................... 6

6. Elytral epipleuron fuscous except both margins black; metaventrite black except metepisterum fuscous; prosternal process

rectangle; penis with a hook-like apex...................................................... aduncatus sp. nov. - Elytral epipleuron black; metaventrite black; prosternal process trapezoid; penis with a sickle-like apex................. 7

7. Elytra black with apical 1/7 yellow; penis guide narrow, converging gradually apical to a pointed tip in ventral view................................................................................................... secula Yang

- Elytra black with apical 1/6 yellow; penis guide broad, converging abruptly apical to a pointed tip in ventral view.............................................................................................. nanlingicus sp. nov.