Gonocnemis, J. Thomson, 1858

Bremer, Hans J. & Grimm, Roland, 2017, The species of Gonocnemis and Paragonocnemis from Borneo with notes on synonymy in the Oriental species (Coleoptera: Tenebrionidae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2), pp. 331-343 : 341

Key to the Bornean species of Gonocnemis and Paragonocnemis (Borneogonocnemis)

1. Pronotum with carinae on the disc. ................................................................................. 2

– Pronotum without carinae on the disc. ............................................................................ 3

2 Each elytron with black transverse macula which does not extend to the inner two and lateral three intervals; aedeagus as in Fig. 6b. ..................... P. (B.) ardoini Bremer, 1991

– Elytra without similar black transverse macula; aedeagus as in Fig. 7b. ........................... ............................................................................................... P. (B.) ruficolor ( Pic, 1936)

3 Body larger, length over 6 mm; aedeagus as in Fig. 5b . .................................................... ............................................................................... G. sericeus sericeus (Fabricius, 1801)

– Body smaller, length below 5 mm. .................................................................................. 4

4 Hairs on both sides of elytral carinae extremely short; aedeagus as in Fig. 3b. ................. ............................................................................................... G. borneensis Ardoin, 1964

– Elytral hairs longer. ......................................................................................................... 5

5 Body apically stockier, length/width ratio of elytra: 1.41–1.49; aedeagus as in Fig. 2b. ... ............................................................................................................ G. fouquei sp. nov.

– Body apically more elongate, length/width ratio of elytra: 1.55–1.63. ........................... 6

6 Pronotum subquadrate, length/width ratio: 1.04. ........................ G. schawalleri sp. nov.

– Pronotum distinctly wider than long, length/width, ratio: 0.81–0.87; aedeagus as in Fig. 4b. ............................................................................................. G. sumatrensis Pic, 1915

Figures

Figs 5a–7b. Gonocnemis and Paragonocnemis spp. 5a–7a – habitus, dorsal views; 5b–7b – aedeagi, dorsal views. 5a, 5b – G. sericeus sericeus (Fabricius, 1801). 6a, 6b – P.(Borneogonocnemis) ardoini Bremer, 1991. 7a, 7b – P. (B.) ruficolor (Pic, 1936).