Oedichirus, Rougemont, 2018

Rougemont, Guillaume de, 2018, New oriental Oedichirus (Staphylinidae, Paederinae, Pinophilini), Linzer biologische Beiträge 50 (1), pp. 461-536 : 513-514

Key 4: species of Oedichirus known from southern India

1 Elytra elongate, humeral angles marked..............................................................................2

- Elytra transverse, humeral angles obsolete..........................................................................3

2 Bicolorous, thorax red, elytra black; elytra broad, sides evenly rounded; habitus: Fig.14h; aedoeagus: Figs 14arl............................................................. longipennis KRAATZ

- Unicolorous, thorax and elytra black; sides of elytra constricted between humeral angles and middle; habitus: Fig.; 41h; aedoeagus: Fig. 41arl ...................... niger CAMERON

3 Pronotum without series of discal punctures and/or other punctures on centre of disc, but only a few lateral punctures (Figs 22h, 23h, 24h); puncturation of head sparse, or consisting of only two punctures .........................................................................................4

- Pronotum with discal series and/or other punctures on centre of disc; head strongly and more densely punctuate .......................................................................................................6

4 Smaller species with narrower fore-body; head with sparse punctures ...............................5

- Larger species with broader fore-body; head with only one pair of punctures near posterior margin; habitus: Fig. 24h; vulvar plate: Fig. 24vp. Anaimalai Hills ...................... .......................................................................................................... lucabosmontis nov.sp.

5 Head black, smaller and more transverse: punctures on last row of each abdominal tergite as numerous and closely spaced as on anterior rows; habitus: Fig. 22h; aedoeagus: Fig. 22arl. Cardamon Hills ........................................... cardamomensis nov.sp.

- Head rufo-testaceous, concolorous with pronotum and elytra, larger and less transverse (Fig. 23h); punctures on last row of each abdominal tergite fewer and more widely spaced than on anterior rows; male sternite VIII: Fig. 23s8; aedoeagus: Fig. 23arl. Coorg....................................................................................................... coorgensis nov.sp.

6 Head red ..............................................................................................................................7

- Head brown or black ...........................................................................................................9

7 Elytra bicolorous, black and red; aedoeagus: Fig. 1arl................................. alatus NIETNER

- Elytra uniformly reddish-testaceous, concolorous with head and pronotum .......................8

8 Abdominal segment III black; last row of punctures on abdominal tergites (on posterior margin) widely and irregularly spaced; vulvar plate: Fig. 18vp ................. ruficeps KRAATZ

- Abdominal segment III rufo-testaceous; last row of punctures on abdominal tergites as closely and regularly spaced as those of preceding rows; vulvar plate: Fig. 20vp ................ ...................................................................................................................... rufulus nov.sp.

9 Elytra bicolorous, black and red; aedoeagus: Fig. 1arl........................... alatus NIETNER ab.

- Elytra unicolorous, black or brown ...................................................................................10

10 Larger species, fore-body ca. 3 mm long; body entirely black, legs entirely testaceous; habitus: Fig. 50h; aedoeagus: Fig. 50arl; vulvar plate: Fig. 50vp...................... latus nov.sp.

- Small species, fore-body ca. 2 mm long; head and pronotum dark brown, elytra rufous, abdominal tergites black, the posterior ¼ of tergites III-VI rufous; legs dark testaceous, apical halves of femora and tibiae slightly infuscate habitus: Fig. 51h; aedoeagus: Fig. 51arl; vulvar plate: Fig. 51vp ................................................................ segmentatus nov.sp.