Mannerheimia, Shavrin, 2018

Shavrin, Alexey V., 2018, Four new species of the genus Mannerheimia Mäklin, 1880 (Coleoptera: Staphylinidae: Omaliinae) from south-western China and Taiwan, Zootaxa 4407 (4), pp. 521-532 : 531-532

Key to Mannerheimia species of China and Taiwan

1 Punctation of pronotum and elytra very large and deep. Pronotum widest slightly in front of middle. Antennomere 4 slightly longer than wide. Apex of median lobe of aedeagus rounded, very wide, strongly extended apicad ( Fig. 5 ). Body length: 2.37–3.17 mm. Habitus as in Fig. 1 . China: Yunnan .......................................... M. grandilobata sp.n.

- Punctation of pronotum and elytra moderately small. Pronotum widest about middle. Antennomere 4 as long as wide. Apical part of median lobe of aedeagus narrow, slightly extended apicad............................................... 2

2 Head without grooves in front of ocelli. Apical half of median lobe of aedeagus and parameres narrow ( Fig. 7 ). Body length: 1.75–2.30 mm. Habitus as in Fig. 2 . China: Sichuan ........................................ M. emeishanensis sp.n.

- Head with distinct short grooves in front of ocelli. Apical half of median lobe of aedeagus and parameres wide........... 3

3 Elytra elongate. Head, elytra and abdomen reddish-brown; pronotum yellowish-brown. Parameres widened in apical portions, significantly longer than median lobe of aedeagus ( Fig.14 ). Body length: 2.02–2.57 mm. Habitus as in Fig. 4 . Taiwan......

..................................................................................... M. taiwanica sp.n. - Elytra wide. Body yellow-brown to reddish-brown, with yellow latero-basal and apical portions of elytra. Parameres not widened in apical portions, only slightly longer than median lobe of aedeagus ( Fig. 12 ). Body length: 2.22–2.57 mm. Habitus as in Fig. 3 . China: Yunnan .................................................................... M. maculata sp.n.

Figures

FIGURES 5–8. Aedeagus of Mannerheimia grandilobata (5–6: paratype) and M. emeishanensis (7–8: paratype): 5, 7—parameral view, 6, 8—lateral view.Scale bar: 0.1 mm.

FIGURES 1–4. Habitus of Mannerheimia: 1—M. grandilobata (paratype), 2—M. emeishanensis (paratype), 3—M. maculata (paratype), 4—M. taiwanica (holotype).Scale bar:1.0 mm.

FIGURES 12–15. Aedeagus of Mannerheimia maculata (12–13: paratype) and M. taiwanica (14–15: paratype): 12, 14—parameral view, 13, 15—lateral view.Scale bar:0.1 mm.