Platydracus subirideus Kraatz, 1859

Huang, Jia-Yi, Chen, Jia-Wei & Tang, Liang, 2024, The genus Platydracus Thomson in Hainan, South China (Coleoptera, Staphylinidae, Staphylininae), ZooKeys 1212, pp. 129-141 : 129-141

Platydracus subirideus Kraatz, 1859

Figs 25–28

Staphylinus subirideus Kraatz, 1859: 78; Cameron 1932: 199.

Platydracus subirideus ; Herman 2001: 14.

Material examined.

China – Hainan Prov. • 1 ♂; Lingshui County, Mt. Diaoluoshan Reservoir ; 18 ° 43 ' N, 109 ° 53 ' E; alt. 950–1000 m; 25 Apr. 2012; PAN Y. H. & LI W. R. leg.; SHNU .

Measurements.

Male: BL: 12.3 mm, FL: 6.66 mm. HL: 1.74 mm, HW: 2.19 mm, EYL: 0.86 mm, TL: 0.56 mm, PL: 2.37 mm, PW: 2.36 mm, EL: 2.58 mm, EW: 2.88 mm. HW / HL: 1.26, TL / EYL: 0.65, PL / PW: 1.00, EL / EW: 0.90.

Diagnosis.

The species is similar to P. maculipennis ( Kraatz, 1859) in most aspects, but it can be recognized from the latter by the posterolateral pale portion of elytra small and indistinctly yellowish (large and distinctly yellowish in P. maculipennis ), abdomen with whitish setae (yellowish in P. maculipennis ) and legs blackish (yellowish in P. maculipennis ).

Distribution.

China (Hainan). Described from ‘ East Indies’. New to China.

Figures

Figures 21–28. Habitus and aedeagus of Platydracus 21–24 P. zhouchenglini 25 – 28 P. subirideus 21, 25 dorsal habitus 22, 26 ventral habitus 23, 27 aedeagus in ventral view 24, 28 aedeagus in lateral view. Scale bars: 2.0 mm (21, 22, 25, 26), 0.2 mm (23, 24, 27, 28).