Dianous luteostigmaticus Rougemont, 1986

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 : 283-284

Dianous luteostigmaticus Rougemont, 1986

( Figs 5, 6 , 21–26 )

Dianous luteostigmaticus Rougemont, 1986: 263 ; Puthz, 2000: 518; Puthz, 2016: 749 .

Material examined. China: Guizhou: 5♂♂, Mt.Fanjing , 23.VII.2003, Li-Zhen Li leg. ( SHNU) ; 1♂ 1♀, same data except Hu & Tang leg. ( SHNU) .

Measurements. BL: 5.8–6.0 mm, FL: 3.1–3.2 mm. HW: 1.07–1.09 mm, PL: 0.88–0.96 mm, PW: 0.88–0.90 mm, EL: 1.33–1.40 mm, EW: 1.29–1.33 mm, SL: 0.18–1.25 mm. Head 0.81–0.84 times as wide as elytra, pronotum 0.97–1.06 times as long as wide, elytra 1.02–1.07 times as long as wide.

Distribution. China ( HongKong, Fujian, Hubei, Shaanxi, Guizhou).

Remarks. The species belongs to Dianous ocellatus complex. It is similar to D. luteolunatus Puthz, 1980 from Guangxi, Guangdong, Laos, Vietnam and Myanmar, but it differs from the latter by the denser and smaller punctures of head and by the smaller elytral marks. The species is new to Guizhou.

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 21–26. Sexual characters of Dianous luteostigmaticus. 21 Male sternite VIII 22 male sternite IX 23, 24 aedeagus 25 female sternite VIII 26 valvifer. Scale bars: 0.25 mm.