ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Water Beetles of China Jahr/Year: 2003 Band/Volume: 3 Autor(en)/Author(s): Nilsson Anders N. Artikel/Article: Dytiscidae: XI. New species, new synonymies, and new records in Platambus Thomson from China (Coleoptera) 261-278 © Wiener Coleopterologenverein, Zool.-Bot. Ges. Österreich, Austria; download unter www.biologiezentrum.at JÄCII & Jl (eels.): Water Beetles of China Vol.111 261 -278 Wien, April 2003 DYTISCIDAE: XL New species, new synonymies, and new records in Platambus THOMSON from China (Coleoptera) A.N. NILSSON Abstract The Platambus specimens collected during CWBS expeditions between 1996 and 2001 were studied. The material includes the following five new species: P. dabieshanensis (Anhui), P. denticiilatus (Sichuan), P. heteronychus (Guangdong), P. micrapiinctatus (Guangdong), and P. yaanensis (Sichuan). The following new synonymies are given: Platambus jilanzhui WEWALKA & BRANCUCCI, 1995, and Agabus nakanei NlLSSON, 1997 both are considered junior synonyms of Agabus stygius REGIMBART, 1899 (now in Platambus). The paratype of Agabus stygius, earlier identified as Platambus insolitus (SHARP), here is identified as P. schillhammeri WEWALKA & BRANCUCCI, 1995. Consequently, P. insolitus is restricted to Japan. Platambus optatus (SHARP) is recorded from China (Fujian, Jiangxi) for the first time. Key words: Coleoptera, Dytiscidae, Platambus, China, taxonomy, faunistics, new species, new synonymies. Introduction My review of Chinese Dytiscidae (NlLSSON 1995) included ten named species of the genus Platambus THOMSON unambiguously recorded from China. Following my recent reclassification of the Agabus-group genera of the Agabini (NlLSSON 2000, 2001), the five species in the oplatus-group known from China have been transferred to Platambus from Agabus, increasing the number of Platambus species known from China to 15. In the present contribution, the study of new material has resulted in the addition to the Chinese fauna of seven more species of the genus. Material and methods This study is based on the examination of 374 specimens, most of them deposited in the NMW. Each specimen was measured and given a unique number on a label. Individual measurements arc distributed by the author as a data file upon request. Samples from different localities were assigned to species chiefly on the shape of the penis. Variation in size and shape were used to find composite samples. Within each species, samples were grouped within regions. All material belongs to NMW, if no other collection is given. Specification of content of references: (cat.) catalogue, (class.) classification, (distr.) distribution, (faun.) faunistic records, (misident.) misidentified, (orig. descr.) original description, (redescr.) redescription, (rev.) revision. © Wiener Coleopterologenverein, Zool.-Bot. Ges. Österreich, Austria; download unter www.biologiezentrum.at 262 NILSSON: Dytiscidae: New species, new synonymies, and new records in Platambus Acronyms & CWBS localities: CASS Chinese Academy of Sciences, Institute of Applied Ecology, Shenyang CFB Coll. Fery, Berlin (property of NMW) CHB Coll. Hendrich, Berlin CNU Coll. Nilsson, Urnea CWBS China Water Beetle Survey MHNP Museum national d'Histoire naturelle, Paris NHML Natural History Museum, London NMW Naturhistorisches Museum Wien. Measurements and positions: (AV) anteroventral, (D) dorsal, (MW) maximum body width, (PV) posteroventral, (TL-h) body length without head (corresponds in average to 92 % of total length), and (WC/WS) ratio between width of metacoxa and width of metaventrite (LARSON 1975), measured inside bead. CWBS loc. 10: Beijing Municipality; Xiang Shan (= Fragrant Hills), ca. 35 km NW Beijing City; small stream (epirhitron), flowing through forest; 2.VII.1992; leg. M.A. Jäch & L. Ji; [locality number on label: 10 (leg. M.A. Jäch) and 10a (leg. L. Ji)]; (see JÄCII & Jl 1995: Fig. 10). CWBS loc. 23: Hunan Province; Xiangxi Prefecture; Dayong County; Zhangjiajic Forest National Park, Suoxiyii Nature Reserve, Wulingyiian section (ca. 30 km N Dayong City); ca. 2 km downstream of Shuiraosimen; small branch of Jinbian Xi, ca. 1 - 2 m wide, slowly flowing, with riffle areas and pools; 30.X.1993; leg. H. Schönmann, H. Schillhammer & L. Ji; [locality number on label: 4]. CWBS loc. 93: Jilin Province; Yanbian Korean Autonomous Prefecture; Antu County; Baihe City, Baohujii District; near Power Plant of Baihe City, near CWBS loc. 90; unshaded, springfed pools, cold water, ca. 750 m a.s.l.; 19.VIII.1994; leg. M.A. Jäch; [locality number on label: 29]. CWBS loc. 96: Liaoning Province; Jinzhou City Region; Beizhen County; Yiwulii Shan; ca. 5 km NW Beizhen City (Guaning); Toudao Gou He (= 1st Valley River), 2 - 5 m wide, only partly shaded, flowing through Chinese Pine (Pinus tabulaeformis) forest, strongly washed out due to heavy spates which occurred two weeks before, ca. 200 m a.s.l.; 22.VIII.1994; leg. M.A. Jäch, L. Ji & M. Wang; [locality number on label: 32]. CWBS loc. 101: Liaoning Province; Jinzhou City Region; Beizhen County; Yiwulii Shan, ca. 15 km W Beizhen City; upstream of CWBS loc. 100; small stream, ca. 1 m wide, partly through secondary forest, granite, ca. 200 m a.s.l.; 23.VIII.1994; leg. M.A. Jäch, L. Ji & M. Wang; [locality number on label: 37]. CWBS loc. 122: Liaoning Province; Bcnxi City Region; Benxi County; ca. 50 km SE Benxi City; 1 km W Xiamatang Village; springfed pool, including Sphagnum swamp, 50 m long, 1 -2m wide, 1 m deep, margin with stones and mud, decaying plant material, 20°C, surrounding vegetation composed of shrubs, ca. 200 m a.s.l.; 26.IX.1994; leg. L. Ji & M. Wang; [locality number on label: 58]. CWBS loc. 123: Liaoning Province; Bcnxi City Region; Benxi County; ca. 50 km SE Benxi City; 1 km W Xiamatang Village; small and shallow ground water pool near CWBS loc. 122, stones, mud and water plants, decaying plant material, 20°C; 26.IX.1994; leg. L. Ji & M. Wang; [locality number on label: 59]. CWBS loc. 134: Shandong Province; Zhongshan Park in Qingdao City; man-made lake, slightly polluted, margin with stones, mud, decaying plant material, surrounding vegetation mainly composed of Maackia sp., Quercus sp., Pinus sp.; 17.X.1994; leg. L. Ji & M. Wang; [locality number on label: 70]. © Wiener Coleopterologenverein, Zool.-Bot. Ges. Österreich, Austria; download unter www.biologiezentrum.at in JÄcil & Jl (eels.): Water Hectics of China, Vol. Ill, 2003 263 CWBS loc. 136: Shandong Province; Tai'an Prefecture; Tai Shan Nature Reserve; 1 kniN of CWBS loc. 135, upstream of Puzhaishi Temple; small, slowly (lowing stream and ground water pools among big rocks, unshaded, gravel and mud, some stones with moss, ca. 300 m a.s.l.; 18.X.1994; leg. L. Ji & M. Wang; [locality number on label: 72]. CWBS loc. 138: Shandong Province; Tai'an Prefecture; Tai Shan Nature Reserve; 50 m upstream of CWBS loc. 137, near Jingshigu Stone Carvings; small stream, 2 m wide, slowly flowing to loc. 137, shaded, small stones, gravel pools, unpolluted; 19.X.1994; leg. L. Ji & M. Wang; [locality number on label: 74]. CWBS loc. 139: Shandong Province; Tai'an Prefecture; Tai Shan Nature Reserve; 100 m upstream of st. 138; small stream, 1 m wide, slightly polluted, limestone, shaded, gravel and rock pools; 19.X. 1994; leg. L. Ji & M. Wang; [locality number on label: 75]. CWBS loc. 140: Shandong Province; Tai'an Prefecture; Tai Shan Nature Reserve; near Doumugong, near CWBS loc. 137; spring and small, cold stream below the spring, 0.5 m wide, slowly flowing, shaded, gravel, stones with moss, slightly polluted, surroundings similar to CWBS loc. 137; 19.X. 1994; leg. L. Ji & M. Wang; [locality number on label: 76]. CWBS loc. 157: Liaoning Province; Dalian City Region; Jinzhou Qii (= Jin Xian); Dahei Shan, ca. 10 km E Jinzhou City; small stream, fast flowing, shaded and unpolluted, flowing through forest, 100 m a.s.l.; 21.VII.1995; leg. L.Ji. CWBS loc. 158: Liaoning Province; Dandong City Region; Kuandian County; Baishila Natural Reserve; ca. 35 km NE Kuandian City; small stream near the Village, ca. 0.5 m wide, slowly flowing, unshaded, mud and gravel, banks with gravel pools, 400 m a.s.l.; 30.VIII. 1995; leg. L. Ji & M. Wang. CWBS loc. 160: Liaoning Province; Dandong City Region; Kuandian County; Baishila Natural Reserve; ca. 35 kmNE Kuandian City; 10 kmN of Baishila Village; rain and ground water pool (ca. 3 m2), surrounded by forest, cold water, shaded, with mud and gravel, 500 m a.s.l.; 30.VIII.1995; leg. L. Ji & M. Wang. CWBS loc. 161: Liaoning Province; Dandong City Region; Kuandian County; Baishila Natural Reserve; 35 km NE Kuandian City; 10 km N Baishila Village; rain and ground water pool in forest, shallow, ca. 3 m2, mud and gravel, ca. 600 m uphill CWBS loc. 160, 500 m a.s.l.; 30.VIII.1995; leg. L. Ji & M. Wang. CWBS loc. 221: Sichuan Province; Ya'an City Region; ca. 14 km N Ya'an City; near road to Shangli Town; river, ca. 5 - 8 m wide, with large rocks, some of these partly moss-covered, flowing through secondary forest, ca. 800 m a.s.l.; 8.VI.1996; leg. L. Ji & M. Wang. CWBS loc. 225: Sichuan Province; Ya'an City Region; ca. 16 km N Ya'an City and ca. 3 km N Shangli Town; small stream, ca. 0.5 m wide, tributary to CWBS loc. 223, ca. 950 m a.s.l.; 9.VI.1996; leg. L. Ji & M. Wang. CWBS loc. 229: Sichuan Province; Ya'an City Region; Lushan County; ca. 5 km N Lushan City, 2 km N Renjia Village, near abandoned power plant (between gate to gorge and bridge); Xichuan He [river], with pebbles and cobbles, and aquatic vegetation, unpolluted, ca. 900 m a.s.l.; 11 .VI. 1996; leg. L. Ji & M. Wang. CWBS loc. 230: Sichuan Province; Ya'an City Region; Lushan County; ca.