A new species of Dysanabatium Bernhauer and additional records of D. jacobsoni Bernhauer (Coleoptera, Staphylinidae, Paederinae) Author Peng, Zhong Author Assing, Volker Author Li, Li-Zhen Author Zhao, Mei-Jun text ZooKeys 2014 409 93 102 http://dx.doi.org/10.3897/zookeys.409.6969 journal article http://dx.doi.org/10.3897/zookeys.409.6969 1313-2970-409-93 505CE68D6AA3454F8C0A2AAE0C4A6D05 Dysanabatium jacobsoni Bernhauer, 1915 Figs 1 B-H , 3-6 Material studied (89 ♂♂, 104 ♀♀, 358 exx.).China:Yunnan: 40 ♂♂, 78 ♀♀, Nabanhe County, Naban, 22°10'N , 100°40'E , 650 m, 7.i.2004, Li & Tang leg. (SNUC); 10 ♂♂, 8 ♀♀, Nabanhe County, Nabanhe N. R., Manfei, 22°09'N , 100°41'E , 650 m, 9.i.2004, Li & Tang leg. (SNUC); 1 ♂, Nabanhe County, Nabanhe N. R., 620 m, 18.ix.2008, Hu & Tang leg. (SNUC); 4 ♂♂, 3 ♀♀, Nabanhe County, Nabanhe N. R., 22°10'N , 100°39'E , 720 m, 22.ix.2008, Hu & Tang leg. (SNUC); 25 ♂♂, 9 ♀♀, Nabanhe County, Mandian, 22°07'N , 100°41'E , 700 m, 12.i.2004, Li & Tang leg. (SNUC); 3 ♀♀, Xishuangbanna, Xiaonuoyouxiazhai, 22°12'N , 100°28'E , 800 m, 6.i.2004, Li & Tang leg. (SNUC). Guangxi: 1 ♂, Jinxiu County, Dayaoshan N. R., 24°08'N , 110°11'E , 850-900 m, 24.vii.2011, Peng leg. (SNUC). Jiangxi: 1 ♂, Jinggang Shan, Xiangzhou env., 26°36'N , 114°16'E , 370 m, forested stream valley, 26.iv.2011, Fikacek & Hajek leg. (NMP). Hainan: 4 ♂♂, 2 ♀♀, 24 km NE Wuzhishan, Wuzhi Shan Guanshandian, 18°53'N , 109°40'E , 650 m 19.iv.2012, Peng & Dai leg. (SNUC); 2 ♂♂, Changjiang County, Bawangling, 19°07'N , 109°07'E , 450-650 m, 13.iv.2010, Zhu leg. (SNUC); 1 ♂, Lingshui County, Diaoluo Shan, 18°43'N , 109°52'E , 900 m, 18.xi.2006, Li leg. (SNUC); 1 ♀, Lingshui County, Diaoluo Shan, 18°43'N , 109°51'E , 1000 m, 20.iv.2010, Yuan leg. (SNUC). Vietnam: 320 exx., Quang Binh province, Vietnam-Laos border region, 1 km N Cha Lo, 17°41'N , 105°46'E , 11.-24.iv.2010, Dembicky leg. (NHMB, cAss). Laos: 9 exx., Khammouan province, Ban Khoun Ngeun, 18°07'N , 104°29'E , 200 m, 24.-29.iv.2001, Kubaň leg. (NHMB, cAss); 4 exx., Bokeo province, 5 km W Ban Toup, Bokeo Nature Reserve, 20°27-28'N, 100°45'E , 500-700 m, 4.-18.v.2011, Brancucci et al. leg. (NHMB, cAss); 13 exx., Louangphrabang province, 5 km W Ban Song Cha, 20°33-34'N, 102°14'E , 1200 m, 1.-16.v.1999, Kubaň leg. (NHMB, cAss); 1 ex., Louangphrabang province, Thong Khan, 20°33-34'N, 102°14'E , 750 m, 11.-21.v.2002, Kubaň leg. (NHMB); 6 exx., Oudomxai province, 17 km ENE Oudom Xai, 20°45'N , 102°09'E , 1100 m, 1.-9.v.2002, Kubaň leg. (NHMB, cAss); 3 exx., Bolikhamxai province, 8 km NE Ban Nape, 18°21'N , 105°08'E , 600 m, 1.-18.v.2001, Kubaň leg. (NHMB, cAss); 1 ex., Louangnamtha province, between Namtha and Muang Sing, 21°09'N , 101°19'E , 900-1200 m, 5.-31.v.1997, Kubaň leg. (NHMB); 1 ex., Champasak province, Bolaven plateau, Muang Paxong, Ban Thongvay, 15°14'N, 106°32', 1000-1200 m, 7.-16.vi.2008, Solodovnikov & Pedersen leg. (cAss). Comment. The original description of Dysanabatium jacobsoni is based on an unspecified number of syntypes from Java ( Bernhauer 1915 ). Two syntypes, a female without head and pronotum labelled as "Type" and a male labelled as "Cotype" from the Bernhauer collection were studied by Rougemont (1997) . For illustrations of the habitus and the male and female sexual characters see Figs 1 B-H , 3 A-P , and 4. As was already observed by Rougemont (1997) , this species is subject to enormous intraspecific variation of external characters (Figs 1 B-H ) such as body size, coloration , punctation, the shapes of the head and pronotum. The sexual characters are somewhat variable, too, especially the shapes of the posterior margin of tergite VIII (Figs 3 A-C , 3 J-K ) and sternite VIII (Figs 3 D-F , 3 M-P ) in both sexes, and the shapes of the ventral process and the membranous structures of the aedeagus (Figs 4 B-F ). Specimens from Yunnan are usually relatively small (BL 4.83-6.04 mm, FL 2.95-3.45 mm), have blackish elytra (Figs 1 C-D ) sharply bicolorous femora, and partly (16 males and 9 females) a bright red pronotum (Fig. 1B). In the specimen from Guangxi the forebody has a faint blueish hue (Fig. 1E) and the sclerotized spine in the internal sac of the aedeagus is slender (Fig. 4D). All the specimens from Hainan have an on average larger body (BL 5.84-6.95 mm, FL 3.37-3.61 mm), a forebody with a weak or distinct metallic hue (Figs 1 F-H ), entirely black femora, and conspicuous membranous structures in the internal sac of the aedeagus (Figs 4 E-F ). In the material from Vietnam and Laos, most of the specimens have a black forebody, some have a more or less distinct blueish or greenish metallic hue, and seven specimens from Vietnam have a reddish pronotum. The legs of all the specimens from Vietnam and Laos are bicoloured, but the extent of the yellowish coloration of the femora is highly variable. Distribution and natural history. According to Rougemont (1997) , Dysanabatium jacobsoni had been recorded from Indonesia (Java), Malaysia, Thailand, Vietnam, and one locality in the south of the Chinese province Yunnan. The currently known distribution is mapped in Fig. 6. The above specimens from Laos represent new country records. The altitudes of the examined material and of the material seen by Rougemont (1997) range from 200 to 1200 m. The specimens from China were found in flood debris, moss, leaf litter and soil near streams in evergreen broad leaved forest, partly together with Dysanabatium hainanense (Fig. 5). Figure 5. Habitat of Dysanabatium hainanense and Dysanabatium jacobsoni in the Wuzhi Shan, Hainan. Figure 6. Distribution of Dysanabatium jacobsoni in the Oriental and southern East Palaearctic regions (filled circles: examined records; open circles: records from Rougemont (1997) ).