Dianous huanghaoi Tang & Li, 2011

Wang, Wei, Tang, Liang & Luo, Yong-Ting, 2019, Notes on the genus Dianous LEACH, 1819 with description of a new species from China (Coleoptera, Staphylinidae), Zootaxa 4686 (2), pp. 282-288 : 283

Dianous huanghaoi Tang & Li, 2011

( Figs 3, 4 , 15–20 )

Dianous huanghaoi Tang & Li, 2011: 75 ; Tang & Li, 2013: 17.

Material examined. China: S-Sichuan: 2♂♂ 1♀, S Yanyuan, Chuandongzi - Massif, 27°21’05’’N, 101°30’26’’E, 3200 m, 8–19.VI.2017, leg Reuter. (cPut) .

Measurements. BL: 5.2–5.4 mm, FL: 2.8–3.0 mm. HW: 0.98–1.02 mm, PL: 0.75–0.79 mm, PW: 0.68–0.74 mm, EL: 1.12–1.18 mm, EW: 1.07–1.14 mm, SL: 0.94–0.96 mm. Head 0.88–0.91 times as wide as elytra, pronotum 1.02–1.16 times as long as wide, elytra 1.03–1.05 times as long as wide.

Distribution. China (Yunnan, Sichuan).

Remarks. The species belongs to Dianous Group I. It is similar to D. carinipennis Bernhauer, 1914 and D. nilgiriensis Puthz, 1995 , both from India, but can be distinguished from the latter two species by the less confluent punctation on pronotum and with vorticose sculpture on posterior half of elytra. The species is new to Sichuan.

Figures

FIGURES 1–8. Habitus. 1, 2 Dianous calvicollis 3, 4 D. huanghaoi 5, 6 D. luteostigmaticus 7, 8 D. pengi. Scale bars: 1 mm.

FIGURES 15–20. Sexual characters of Dianous huanghaoi. 15 Male sternite VIII 16 male sternite IX 17, 18 aedeagus 19 female sternite VIII 20 valvifer. Scale bars: 0.25 mm.