Sinella

Pan, Zhi-Xiang, Zhang, Feng & Shi, Shi-Di, 2012, Contribution to study of eyed species of Sinella (Collembola: Entomobryidae), with a key to this group of species from China, Zootaxa 3180, pp. 35-46 : 44

Key to the Chinese species of Sinella having eyes

1 Unguiculus with a clear large tooth on outer edge............................................................ 2

- Unguiculus smooth or serrate or with a tiny tooth on outer edge................................................ 11

2 Mucronal basal spine long reaching at least half way from tip of subapical tooth to tip of apical tooth................... 3

- Mucronal basal spine short, at most slightly exceeding tip of subapical tooth....................................... 6

3 Eyes 4+4............................................................. S. qufuensis Chen & Christiansen, 1993

- Eyes at most 1+1...................................................................................... 4

4 Antenna more than 2.5 times as long as cephalic diagonal................................. S. monoculata Denis, 1929

- Antenna less than 2.5 times as long as cephalic diagonal...................................................... 5

5 Abd. I with 5+5 central mac; Abd. IV with 5+5 central mac......................................... S. sunae n. sp.

- Abd. I with 6+6 central mac; Abd. IV with 4+4 central mac...................... S. affluens Chen & Christiansen, 1993

6 Eyes 5+5............................................................................................ 7

- Eyes at most 4+4...................................................................................... 9

7 Abd. III with 2+2 central mac............................................. S. quinocula Chen & Christiansen, 1993

- Abd. III with 1+1 central mac........................................................................... 8

8 Body grey; labial basal seta R smooth; tenent hair on fore leg clavate.......................... S. umesaoi Yosii, 1940

- Body white; labial basal seta R ciliate; tenent hair on fore leg pointed................................... S. gei n. sp.

9 Eyes 1+1.............................................................. S. pauciseta Qu, Zhang & Chen, 2010

- Eyes 3+3.......................................................................................... 10 10 Abd. III with 1+1 central mac...................................................... S. straminea ( Folsom, 1899) - Abd. III with 2+2 central mac.............................................. S. triocula Chen & Christiansen, 1993 11 Mucronal basal spine absent........................................................ S. yasumatsui Uchida, 1948 - Mucronal basal spine present........................................................................... 12 12 Eyes at most 2+2..................................................................................... 14 13 Four sublobal hairs on maxillary outer lobe................................ S. colorata Zhang, Qu & Deharveng 2010 - Three sublobal hairs on maxillary outer lobe..................................... S. wui Wang & Christiansen, 2000 14 Eyes at most 1........................................................ S. fuyanensis Chen & Christiansen, 1993 - Eyes 2+2........................................................................................... 15 15 Mucronal basal spine long reaching at midway between two teeth............................ S. curviseta Brook, 1882 - Mucronal basal spine short, at most slightly exceeding tip of subapical tooth...................................... 16 16 Abd. IV with 5+5 central mac............................................... S. browni Chen & Christiansen, 1993 - Abd. IV with 7+7 central mac............................................... S. plebeia Chen & Christiansen, 1993