Dianous luteostigmaticus Rougemont, 1986

Shuai, Qi & Tang, Liang, 2019, The genus Dianous in Zhejiang, East China (Coleoptera, Staphylinidae), Zootaxa 4706 (2), pp. 275-295 : 283-285

5. Dianous luteostigmaticus Rougemont, 1986

( Figs. 9, 10 , 57–64 )

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

Material examined. China: Zhejiang: 8♂♂ 13♀♀, Lin’an city, Qingliangfeng N.R., 800–1100m, 17–20. FIGURES 41–56. 41–48 Dianous rufidulus 49–56 D. rugosipennis 41 , 49 male sternite VIII 42, 50 female sternite VIII 43, 51 male tergites IX and X 44, 52 female tergites IX and X 45, 46, 53, 54 aedeagus 47, 55 male sternite IX 48, 56 valvifer. Scale bars = 0.25 mm.

VII.2009, Yuan & Yin leg. ( SHNU); 4♂♂ 2♀♀, Lin’an city, Pingxi, 1000–1100m , 30°23’N, 119°28’E, 9. VI .2012 , Jian-Qing Zhu leg. ( SHNU); 1♀, Lin’an city, Qingliangfeng, 900m, 8.VII.2012, Jian-Qing Zhu leg. ( SHNU). Fuji- an: 7♂♂ 6♀♀, Wuyi shan, 1100m , 10.VII.2009, Xiao-Bing Song leg. ( SHNU); 4♂♂ 3♀♀, Wuyishan City , Guadun Vill., 27°44’N, 117°38’E, 1100–1400m , 29.V.2012, Peng & Dai leg. ( SHNU) .

Measurements. BL: 5.8–6.5 mm, FL: 2.9–3.2 mm. HW: 1.06–1.12 mm, PL: 0.88–0.98 mm, PW: 0.83–0.94 mm, EL: 1.31–1.44 mm, EW: 1.18–1.41 mm, SL: 1.14–1.28 mm. Head 0.77–0.91 times as wide as elytra; Pronotum 1.03–1.08 times as long as wide; Elytra 1.00–1.11 times as long as wide.

Distribution. China ( Hong Kong, Fujian, Zhejiang, Hubei, Shaanxi). New to Zhejiang.

Remarks. The species can be usually collected with D. freyi from the same localities, and it differs from the latter by smaller and denser punctaion of head, legs blackish and metatarsomere IV simple.

Figures

FIGURES 7–12. Adult habitus of Dianous. 7, 8 D. rugosipennis 9, 10 D. luteostigmaticus 11, 12 D. aequalis. Scale=1mm.

FIGURES 57–76. 57–64 Dianous luteostigmaticus 65–76 D. aequalis 57, 65 male sternite VIII 58, 66 female sternite VIII 59, 67 male tergites IX and X 60, 68 female tergites IX and X 61, 62, 69, 70, 71, 72, 73, 74 aedeagus 65, 75 male sternite IX 64, 76 valvifer. Scale bars = 0.25 mm.