Clinterocera

Qiu, Jian-Yue & Xu, Hao, 2016, Taxonomy and natural history of the myrmecophilous genus Clinterocera Motschulsky, 1858 (Coleoptera: Scarabaeidae: Cetoniinae) from China and adjacent regions: definition of species group and revision of the C. discipennis species group, Zootaxa 4127 (1), pp. 81-104 : 86

Key to the species groups of the genus Clinterocera

1. Elytral costae evident................................................... Clinterocera vollenhovii species group

- Elytra without costa.................................................................................... 2

2. Terminal spiracle distinctly protruding; pygidial surface heavily punctate, sometimes with tomentum ( Fig. 4 ); tarsi usually thick.................................................................... Clinterocera jucunda species group

- Terminal spiracle slightly convex; pygidium surface glabrous ( Fig. 5 ); tarsi usually slender........................... 3

3. Length usually less than 17 mm; body totally black or dark gray; elytra usually with white or beige tomentum.................................................................................... Clinterocera scabrosa species group

- Length usually greater than 17 mm; body color usually black and red (orange); elytra without tomentum....................................................................................... Clinterocera discipennis species group

Figures

FIGURES 1 – 9. Characters of Clinterocera. 1, Antennal scapus, ventral surface; 2, antennal scapus, dorsal surface; 3, permentum; 4, spiracla, propygidium, and pygidium in C. jucunda species group; 5, spiracla, propygidium, and pygidium in C. scabrosa and C. discipennis species groups; 6, male protibia; 7, female protibia; 8, tarsi in C. discipennis species group; 9, tarsi in some of the C. jucunda species group.