Cephennodes, Reitter

Feng, Ting & Yin, Zi-Wei, 2023, A new Cephennodes Reitter (Coleoptera: Staphylinidae: Scydmaeninae) of C. lustricollis group from East China, Zootaxa 5346 (3), pp. 331-336 : 335

Key to Cephennodes males of the C. lustricollis group

1 Larger species, body length nearly 1.6 mm; lateral frontoclypeal impressions present (Southwest China: Guizhou).......................................................................... Cephennodes zunyianus Jałoszyński, 2012

- Smaller species, body length less than 1.4 mm; lateral frontoclypeal impressions absent............................. 2

2 Punctures of frons dense and distinct in center, absent on sides (South China: Hong Kong)................................................................................................ Cephennodes astoni Jałoszyński, 2011

- Punctures of frons distributed on entire surface (as in Fig. 1C )................................................. 3

3 Male body length smaller than 1.3 mm; punctures on median region of pronotum extremely fine, barely noticeable under 40× magnification; apex of apical projection of aedeagus relatively much narrower ( Jałoszyński & Nomura 2009: figs 83, 84) (North Vietnam: Ninh Bình)................................ Cephennodes lustricollis Jałoszyński & Nomura, 2009

- Male body length larger than 1.3 mm; punctures on median region of pronotum fine, but as distinct as those on remaining areas, easily visible under 40× magnification; apex of apical projection of aedeagus relatively much broader ( Fig. 1D ) (East China: Jiangsu)...................................................................... Cephennodes gusu sp. nov.

Figures

FIGURE 1. Habitus and morphological details of Cephennodes gusu sp. nov., male. A, B. Habitus, dorsal (A) and ventral (B). C. Head dorsum, showing punctation. D, E. Aedeagus, ventral (D), and lateral (E). Scale bars: 0.5 mm in A, B; 0.2 mm in C; 0.1 mm in D, E.