(5 ♂♂, 11 ♀♀). China, Sichuan: 4 ♂♂, 11 ♀♀, Erlang Shan, 1310 m, 01–VII–2009, Li leg. Hubei: 1 ♂, Muyu, Shennongjia, 05–VIII–2002, Li & Tang leg.

Some specimens from Erlang Shan, Sichuan, have indistinct or very small reddish elytra spots.

(1 ♂, 4 ♀♀). China, Zhejiang: 1 ♂, 2 ♀♀, Anji County, Longwang Shan, 30°26'N, 119°26'E, 1050–1200 m, 13–V–2013, Chen et al. leg.; 2 ♀♀, Tianmu Shan, Gaoling, 800 m, 26–IV–2008, He & Tang leg.

Lobrathium demptum had previously been recorded from Longwang Shan and Tianmu Shan, Zhejiang (Li et al. 2013).

(8 ♂♂, 1♀). Holotype, ♂: “China, Guangxi, Lingui County, Anjiangping, 1700 m, 25°33'N, 109°55'E, 17–VII–2011, Peng Zhong leg. / Holotype ♂, Lobrathium fuscoguttatum, sp. n. Li et al., det. 2013”. Paratypes, 1 ♂: “China, Guangxi, Lingui County, Anjiangping, 1700 m, 25°33'N, 109°55'E, 17–VII–2011, Peng Zhong leg.”; 3 ♂♂: “China: Guangxi, Lingui County, Anjiangping, 1400–1700 m, 25°33'N, 109°56'E, 14–VII–2011, Peng Zhong leg.”; 3 ♂♂, 1 ♀: “China: Guangxi, Jinxiu County, Yinshan Station, 1200 m, 24°10'N, 110°13'E, 23–VII–2011, Peng Zhong leg.”

Body length 6.75–7.51 mm, length of fore body 3.45–3.89 mm. Habitus as in Fig. 1A. Coloration: body black with bluish hue, middle of elytra with yellowish spot not reaching lateral and posterior margins; legs blackish with paler tarsi, antennae dark brownish to blackish.

Head weakly transverse (HW/HL = 1.06–1.18), widest across eyes; posterior angles broadly rounded; punctation dense and moderately coarse, sparser in median dorsal portion; interstices without microsculpture. Eyes large, more than half as long as distance from posterior margin of eye to neck in dorsal view. Antenna 2.0–2.17 mm long.

Pronotum 1.19–1.27 times as long as broad, nearly as wide as head (PW/HW = 0.91–1.0), lateral margins convex in dorsal view, punctation similar to that of head, but with impunctate midline, interstices glossy.

Elytra wider, and nearly as long as pronotum (EL/EW = 0.91–1.04, EW/PW = 1.13–1.27, EL/PL = 0.92–1.01); punctation coarse and dense, arranged in series; interstices without microsculpture.

Abdomen broader than elytra; punctation fine and dense; posterior margin of tergite VII with palisade fringe.

Male. Sternite VII (Fig. 1D) strongly transverse and with distinct median impression, this impression without pubescence, posterior margin with distinct median concavity; sternite VIII (Fig. 1E) weakly transverse, with long and pronounced postero-median impression, this impression with a few modified, stout and short black setae (10-20 on either side of middle), posterior excision rather narrow and moderately deep, on either side of this excision with a cluster of long dark setae; aedeagus (Figs 1B, C) 0.82–0.87 mm long, ventral process long, curved, and apically acute in lateral view.

Female. Sternite VIII (Fig. 1G) weakly transverse, posteriorly convex; tergite VIII (Fig. 1F) posteriorly convex in middle.

The specific epithet (Latin, adjective) refers to the dark elytral spots.

This species is similar to Lobrathium tortuosum Li et al. (2013) in the shape and chaetotaxy of the sternites VII-VIII and the morphology of the aedeagus (the sternite VII of Lobrathium tortuosum see Li et al. 2013). The new species differs from Lobrathium tortuosum by the shape of the ventral process of the aedeagus in lateral view.

The specimens were sifted from wet moss near a cold stream in the Anjiangping National Reserve, Guangxi, in July (see fig. 20A in Li et al. 2013).

(2 ♂♂, 1 ♀). China, Henan: 1 ♂, 1 ♀, Luoyang City, Baiyun Shan, 18–VII–2008, Li leg. Ningxia: 1 ♂, Jingyuan County, Erlonghe Forestry, Xiaonanchuan, Liangdianxia, 2000 m, 09–VII–2008, Yin leg.

Lobrathium hebeatum was previously known only from Sichuan, Yunnan, Shaanxi and Gansu (Assing 2012; Assing 2013; Li et al. 2013). The above specimens represent the first records from Henan and Ningxia.

(11 ♂♂, 1 ♀). China, Fujian: 1 ♂, Longyan City, Guihe Village, 1200 m, 25–V–2007, Huang & Xu leg. Yunnan: 1 ♂, 1 ♀, Nabanhe N. R., Chuguohe, Bengganghani, 1750 m, 28–IV–2009, Hu & Yin leg. Zhejiang: 2 ♂♂, Zhuji City, Dongbai Shan, 300 m, 29°28'N, 120°26'E, 04–X–2012, Zhao leg.; 1 ♂, Jingning County, Baiyunlin Village, 27°43'N, 119°39'E, 1100–1270 m, 07–V–2012, Zhu leg. Hubei: 6 ♂♂, Wufeng County, Houhe N. R., 1100 m, 30°04'N, 110°37'E, 27–IV–2004, Li leg.

Lobrathium hongkongense is the most widespread species in China, and distributed also in southern Japan (Assing 2012; Assing 2013; Li et al. 2013).

(1 ♂, 10 ♀♀). China, Sichuan: 1 ♂, 10 ♀♀, Dujiangyan City, Qingcheng Shan, 20–VII–2003, Li leg.

The above specimens were collected from the type locality (Qingcheng Shan, Sichuan).

(2 ♂♂, 1 ♀). China, Shaanxi: 1 ♂, 1 ♀, Hanzhong City, Liping N. R., 1400–1600 m, 32°50'N, 106°36'E, 15–VII–2012, Chen et al. leg. Jiangxi: 1 ♂, Jinggangshan City, Ciping Town, 850 m, 26°29'N, 114°05'E, 18–X–2010, Peng et al. leg.

This species has been recorded from Hubei, Shanxi, Zhejiang, Sichuan, Yunnan and Shaanxi (Assing 2012; Li et al. 2013). The above male from Jiangxi represents a new province record.

(11 ♂♂, 5 ♀♀). China, Shaanxi: 8 ♂♂, 2 ♀♀, Hanzhong City, Liping N. R., 32°50'N, 106°36'E, 1400–1600 m, 15–VII–2012, Chen et al. leg.; 2 ♂♂, 1 ♀, Zhouzhi County, Houzhenzi, Qinling Shan, West Sangongli Valley, 33°50'N, 107°48'E, 18–V–2008, Xu leg.; 1 ♂, 2 ♀♀, Ankang City, Ningshaan County, Huoditang, 1500–1700 m, 12–VII–2012, Chen et al. leg.

The specimens from Liping N. R., Hanzhong City, Shaanxi, were sifted from leaf litter near a stream after rain.