Stenothemus harmandi

Yang, Yuxia, Su, Junyan & Yang, Xingke, 2014, Review of the Stenothemus harmandi species-group (Coleoptera, Cantharidae), with description of six new species from China, Zootaxa 3847 (2), pp. 203-220 : 204-205

Key to the species of the Stenothemus harmandi species-group

1. Posterior angles of pronotum obtuse and subrounded......................................................... 2

- Posterior angles of pronotum sharp and protruding........................................................... 3

2. Aedeagus: dorsal plate of each paramere evenly narrowed apically, laterophyse hooked at apex...... S. fugongensis sp. nov.

- Aedeagus: dorsal plate of each paramere abruptly narrowed apically, laterophyse rounded at apex...................................................................................................... S. orbiculatus Švihla, 2005

3. Aedeagus: laterophyse hooked at apex; abdominal sternite VII of female triangularly protuberant in middle of posterior margin..................................................................................... S. septimus sp. nov.

- Aedeagus: laterophyse rounded at apex; abdominal sternite VII of female normal, nearly straight at posterior margin....... 4

4. Aedeagus: dorsal plate of each paramere evenly narrowed apically or nearly parallel-sided........................... 5

- Aedeagus: dorsal plate of each paramere abruptly narrowed apically............................................. 6

5. Pronotum distinctly wider than long; abdominal sternite VIII of female triangularly emarginated in middle of posterior margin.................................................................................... S. parallelus sp. nov.

- Pronotum slightly wider than long; abdominal sternite VIII of female roundly emarginated in middle of posterior margin................................................................................ S. harmandi ( Bourgeois, 1902)

6. Aedeagus: ventral process of each paramere thickened, distinctly widened at base, in a bent stick-shape.................................................................................................... S. distortirudis sp. nov.

- Aedeagus: ventral process of each paramere unlike above...................................................... 7

7. Aedeagus: ventral process of each paramere slightly bent ventrally, flattened and subtriangularly dilated at apex in dorsolateral view.............................................................................. S. leishanensis sp. nov.

- Aedeagus: ventral process of each paramere distinctly bent ventrally, circular at apex in lateral view.................... 8

8. Pronotum slightly wider than long in male.............................................. S. subnitidus Švihla, 2005

- Pronotum distinctly wider than long in male................................................................ 9

9. Aedeagus: ventral process of each paramere with the bent portion at apical part distinctly shorter than the basal portion........................................................................................... S. laticollis sp. nov.

- Aedeagus: ventral process of each paramere with the bent portion at apical part distinctly longer than the basal portion..................................................................................... S. holosericus Švihla, 2005