Oedanomerus, Sehnal, 2018

Sehnal, Richard, 2018, Two new Oedanomerus species from Zimbabwe (Coleoptera: Scarabaeidae: Melolonthinae: Tanyproctini), Zootaxa 4377 (4), pp. 593-600 : 600

Key to species of Oedanomerus (modified from Evans 1987 and Lacroix 2005)

1 Antenna with nine antennomeres; club twice combined length of adjacent five antennomeres; clypeus with a subapical carina... 2

- Antenna with eight antennomeres; club subequal to combined length of adjacent four antennomeres; clypeus with apical margin reflexed .............................................................................................................................................................................................. 5

2 Pronotum and elytra with long, fine pilosity; elytral striae clearly visible ................................................... O.snizeki Lacroix, 2005

- Pronotum and elytra covered with short scales, elytral striae weakly visible................................................................................... 3

3 Clypeus flat, matte, micropunctate, without keel.................................................................................. O. squamosus Lacroix, 2005

- Clypeus concave, strongly punctate, with keel ................................................................................................................................ 4

4 Anterior margin of clypeus pointed........................................................................................................ O. capriviensis Evans, 1987

- Anterior margin of clypeus rounded........................................................................................................ O. longicornis Arrow, 1936

5 Pronotum squamose ............................................................................................................................. O. hirsutus Waterhouse, 1875

- Pronotum setose ................................................................................................................................................................................ 6

6 Protibia bidentate.......................................................................................................................... O. bidentatus Sehnal , new species

- Protibia tridentate .............................................................................................................................................................................. 7

7 Elytra squamose; pronotum shiny ................................................................................................................. O. bicolor Evans, 1987

- Elytra setose; pronotum matte ........................................................................................................................................................... 8

8 Pronotal disc with medial line; elytral striae distinct ..................................................................................... O. uhligi Lacroix, 2005

- Pronotal disc without medial line; elytra without striae.................................................................................................................... 9

9 Smaller species, <7.0 mm; clypeal subapical carina long, clypeus widely curved, anteriorly broadly arcuate; Namibia................. ........................................................................................................................................................................... O. pilosus Frey, 1960

- Larger species,> 7.3 mm; clypeal subapical carina short, clypeus pointed apically; Zimbabwe....................................................... ......................................................................................................................................................... O. lupanus Sehnal , new species