Tibiodrepanus

Barbero, Enrico, Palestrini, Claudia & Roggero, Angela, 2011, Tibiodrepanus tagliaferrii — a new Afrotropical Drepanocerina species (Coleoptera: Scarabaeidae: Oniticellini), with notes on phylogeny and distribution of the genus, Zootaxa 2923, pp. 27-47 : 33

Key to the species of Tibiodrepanus

1. Protibiae bearing four normally shaped outer teeth. Afrotropical species......................... T. sulcicollis (Laporte)

- Protibiae bearing a highly modified apical outer tooth, tooth narrow and inserted on transverse apex, adjacent to tarsus..... 2

2 (1). Elytral striae III and IV noticeably sinuate in the hind third..................................................... 3

- Elytral striae III and IV very feebly sinuate in the hind third.................................................... 5

3 (2). Surface of the head bearing dense, wide, very superficial punctures. Oriental species................. T. sinicus (Harold)

- Surface of the head bearing deeper punctures, distributed on a shiny surface....................................... 4

4 (3). Metasternal disc flat. Oriental species.................................................... T. setosus (Wiedemann)

- Metasternal disc humped. Afrotropical species............................................. T. tagliaferrii sp. nov.

5 (3) Metasternum entirely punctate. Oriental species............................................. T. hircu s (Wiedemann)

- Metasternum bearing a longitudinal, medial impunctate line. Afghanistan....................... T. simplex (Kabakov)