Pseudohesperus, HAYASHI, 2008

Li, Liang & Zhou, Hong-Zhang, 2011, Revision and phylogenetic assessment of the rove beetle genus Pseudohesperus Hayashi, with broad reference to the subtribe Philonthina (Coleoptera: Staphylinidae: Staphylinini), Zoological Journal of the Linnean Society 163 (3), pp. 679-722 : 698

KEY TO SPECIES OF THE GENUS PSEUDOHESPERUS HAYASHI, 2008

1. Head and pronotum with distinct and profound microsculpture.................................................................2

– Head and pronotum without microsculpture...........................................................................................5

2. Eyes large (1.20–1.67 times as long as tempora).....................................................................................3

– Eyes small (0.80–0.83 times as long as tempora)................... Pseudohesperus tripartitus Li & Zhou sp. nov.

3. Elytra entirely black..........................................................................................................................4

– Elytra black-brown with suture and posterior margin markedly reddish-brown.............................................. ........................................................................................... Pseudohesperus luteus Li & Zhou sp. nov.

4. Body small [head- pronotum length (HPL): 2.61 mm], sternite IX of male without modified rod-like extensions ... ................................................................................. Pseudohesperus pedatiformis Li & Zhou sp. nov.

– Body large (HPL: 2.77–2.94 mm), sternite IX of male with modified rod-like extensions .................................. ....................................................................................................... Pseudohesperus rutiliventris (Sharp)

5. Elytra black; each side of impunctate midline of pronotum with punctures separated by four to eight times their diameter.......................................................................................... Pseudohesperus cf. eustilbus (Kraatz)

– Elytra black with posterior margin markedly reddish-brown; each side of impunctate midline of pronotum with 12–15 scattered punctures, sometimes eight to ten punctures forming an irregular, dorsal row......................... ............................................................................ Pseudohesperus sparsipunctatus Li & Zhou sp. nov.