Omaliopsis, Jeannel, 1940

Shavrin, Alexey V., 2019, Three new species and a new combination in the genus Omaliopsis Jeannel, 1940 (Coleoptera: Staphylinidae: Omaliinae: Omaliini) of China and Nepal, Zootaxa 4603 (2), pp. 354-364 : 363-364

Key to species of Omaliopsis of Asia

1 Each elytron with distinct pale macula..................................................................... 2

- Elytra without maculae, unicoloured...................................................................... 3

2 Each elytron with very wide macula covering most part of apical half of elytron; legs and antennomeres 1–5 yellow. Antennomeres 6–10 slightly elongate. Median lobe moderately narrow ( Fig. 13 ). Body length: 3.14 mm. Habitus as in Fig. 1 . China: Sichuan ........................................................................... O. amplimaculata sp.n.

- Each elytron with small round yellowish spot in middle; legs and antennomeres 1–5 reddish-yellow. Antennomeres 6–10 distinctly transverse. Median lobe markedly wide ( Figs. 15–16 ). Body length: 2.92–3.35. Habitus as in Fig. 2 . China: Yunnan ...................................................................................... O. bimaculata sp.n.

3 Head with markedly large eyes and indistinct temples. Apical part of aedeagus bilobed ( Fig. 18 ). Body length: 3.30–3.60 mm. Habitus as in Fig. 3 . China: Jiangxi, Hong Kong................................... O. musaphila ( Rougemont, 2017)

- Head with moderately small eyes and distinct short temples.................................................... 4

4 Pronotum widest about middle. Aedeagus as in Fig. 20 . Body smaller: 3.15–3.54. Habitus as in Fig. 4 . Nepal................................................................................................... O. schmidti sp.n.

- Pronotum widest in anterior third,. Body larger: 3.50–4.30 mm. Northern India.......... .. O. himalayica ( Cameron, 1924)

Figures

FIGURES 13–17. Aedeagus of Omaliopsis (13–14—O. amplimaculata sp.n. (holotype), 15–17—O. bimaculata sp.n. (15— holotype, 16–17—paratype): 13, 15–16—parameral view, 14, 17—lateral view. Scale bar: 0.1 mm.

FIGURES 1–4. Habitus of Omaliopsis: 1–O. amplimaculata sp.n. (holotype), 2—O. bimaculata sp.n. (paratype), 3—O. musaphila (Rougemont, 2017) (China: Jinggangshan), 4—O. schmidti sp.n. (paratype). Scale bar: 1.0 mm.

FIGURES 18–21. Aedeagus of Omaliopsis (18–19—O. musaphila (Rougemont, 2017), 20–21—O. schmidti sp.n. (paratype)): 18, 20—parameral view, 19, 21—lateral view. Scale bar: 0.1 mm.