A study on the genus Stenus Latreille from Zhuji City of Zhejiang, East China (Coleoptera, Staphylinidae)
Author
Zhao, Tie-Xiong
text
Zootaxa
2017
2017-09-20
4323
1
25
38
journal article
32044
10.11646/zootaxa.4323.1.2
6d9c06e6-98d8-4523-86cb-3748d1c1ea4b
1175-5326
897317
8E74915A-6F94-48F8-B854-Bbb9E7F43Bba
Key to
Stenus
species of Zhuji City
1 Legs with tarsomeres IV distinctly simple.................................................................. 2
- Legs with tarsomeres IV distinctly bilobed................................................................. 11
2 Abdominal segments without paratergites.......................................................
S. pilosiventris
- Abdominal segments with distinct paratergites............................................................... 3
3 Elytra each with an orange spot..................................................................
S. tenuipes
- Elytra entirely black................................................................................... 4
4 Abdominal tergites of segments III–V without longitudinal basal carina........................................... 5
- Abdominal tergites of segments III–V with longitudinal basal carinae............................................ 6
5 Basal half of femora distinctly lighter than apical half (applicable only on the population from Tianmushan Area), male sternite VII with posteromedian portion flattened, internal sac of aedeagus broad...................................
S. eurous
- Basal half of femora slightly lighter than apical half, male sternite VII with posteromedian portion distinctly impressed, inter- nal sac of aedeagus narrow....................................................................
S. pubiformis
6 Abdominal tergites of segments III–V with three longitudinal basal carinae........................................ 8
- Abdominal tergites of segments III–V with four longitudinal basal carinae....................
S. melanarius melanarius