Ochodaeus, Dejean, 1821

Paulsen, M. J., 2019, Three new Madagascan species of Ochodaeus Dejean (Coleoptera: Scarabaeoidea: Ochodaeidae), Insecta Mundi 684, pp. 1-14 : 11

Key to species of Ochodaeus in Madagascar

1. Pronotum everywhere strongly, densely granulate with elevated tubercles ( Fig. 13)........ 2

— Pronotum either entirely smooth and punctate or with weak granulation confined to disc ( Fig. 14)........................................................................ 4

2(1). Elytral tubercles on intervals sparse; body length less than 4 mm .... O. pygmaeus Paulian — Elytral tubercles dense; body length greater than 4 mm ............................... 3

3(2). Median thickening of clypeal bead variable, lateral thickening always evident ( Fig. 15); body usually> 9.0 mm....................................... O. isoanalensis Paulian

— Median thickening of clypeal bead simply convex, bead thin laterally ( Fig. 16); body length usually 4.5–8.0 mm................................................... O. miliaris Klug

4(1). Pronotal surface simply punctate............. O. modopunctatus Paulsen , new species — Pronotal surface weakly granulate on disc.......................................... 5

5(4). Clypeal bead evenly curved ( Fig. 17). Mentum deeply, entirely furrowed ( Fig. 5). Males usually with 2 pollices on protibia.................. O. polypollicatus Paulsen , new species

— Clypeal bead wavy ( Fig. 18). Mentum with furrow not reaching past middle ( Fig. 6). Males with a single pollex on protibia...................... O. meandrus Paulsen , new species