Epanerchodus potanini Golovatch, 1991

Figs 1–6

Epanerchodus potanini Golovatch, 1991: 153 .

Material examined: 1 male, 5 females, 3 subadults (19 segments) (SMF), China, Gansu Prov., Lianhua Shan Mts, 2870 m a.s.l, cool Picea-Abies forest with Betula & Salix, 34.925°N, 103.730°E, 13.06.2013, leg. J. Martens; 1 male, 1 fragment (ZMUM), Sichuan Prov., NW of Mianning, broadleaved forest, 4035 m a.s.l., 28°40’03”N, 103°00’56”E, 07.06.2012; 1 incomplete female (ZMUM), same locality, 3675 m a.s.l., broadleaved forest, 28°38’41”N, 102°03’59”E, 06.06.2012; 3 females (ZMUM), same locality, 2475 m a.s.l., broadleaved forest, 28°38’41”N, 102°03’59”E, 05.06.2012; 3 females, 1 juvenile (ZMUM), Sichuan Prov., S of Muli, 3065 m a.s.l., broadleaved forest, 27°44’34”N, 101°17’26”E, 23.05.2012, all leg. I. Belousov, I. Kabak, G. Davidian & A. Korolev; 1 subadult female (ZMUM), Sichuan Prov., Maoxian County, SE of Shangxinzhen, 3155 m a.s.l., broadleaved forest, 31°34’04”N, 103°47’41”E, 30.06.2012; 1 incomplete female (ZMUM), Sichuan, Jiulong County, SE of Wulaxixiang, 3445 a.s.l., broadleaved forest, 28°35’21”N, 101°36’14”E, 12.06.2012, both leg. I. Belousov & G. Davidian; 2 females (ZMUM), Sichuan Prov., Pass Pingchuan to Yanyuan, 3205 m a.s.l., broadleaved forest, 27°31’51”N, 101°42’43”E, 20.07.2011; 1 female (ZMUM), Sichuan Prov., Pass Pingchuan, 3445 m a.s.l., broadleaved forest, 27°39’55”N, 101°44’28”E, 16.07.2011, all leg. I. Belousov & I. Kabak.

Remarks. Since this species has been described both from Gansu and Sichuan provinces (Golovatch 1991), the above samples can be regarded as near-topotypes which are also restricted to high elevations. Slight variations concern only coloration (only rarely a little lighter or darker, but usually rather dark brown, Figs 1–4) and the shape and length of the outgrowths on the gonopod telopodite, in particular the exomere (ex) and the processes at the base of the endomere (en) (Fig. 6). Sometimes ex is slightly broadened and flattened near midway (male from NW of Mianning), normally subspiniform, but occasionally microspiculate (Fig. 6). Processes p1 and p2 can also vary in length, e.g. p 2 in the male from NW of Mianning is considerably longer than p1 and nearly as long as en. What seems to be stable is the rather small mesal lobe s at the base of the en (Fig. 6) while sphaerotrichomes are present in male postfemora, tibiae and tarsi (Fig. 5) (see also Golovatch 1991).