388 PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES Series 4, Volume 63, No. 12 FIGURE 18. Trechus shiyueliang sp. nov.; a. Dorsal habitus (CASENT1021004). b. Median lobe of aedeagus of male (CASENT1021004), left lateral aspect. c. Map of locality record s(red circles) for T.shiyueliang in the Gaoligong Shan region. Scale lines a, b = 0.5 mm, c = 100 km.
DEUVE ET AL.: CARABID BEETLE FAUNA OF THE GAOLIGONG MOUNTAINS 389 HABITAT DISTRIBUTION.— Members of this species have been found in a variety of microhabitats at elevations ranging from 3100 to 3740 m. They have been collected in daytime from under stones in thickets of bamboo and Prunus, in rocky open areas cleared by snow avalanches (Fig. 40b), in meadows adjacent to bamboo and Rhododendron thickets (Fig. 42b) and along roadcuts through such thickets. They have also been collected at night, found walking on the substrate along roadcuts through areas of bamboo with an overstory of scattered Abies trees. At higher elevations, they were the only trechine encountered in this area; but they were found syntopic with specimens of Trechus shibalicus sp. nov., Trechepaphiopsis unipilosa sp. nov. and Trechepaphiopsis unisetulosa sp. nov. at the upper limit of the altitudinal range of this last mentioned species (3100 m). GEOGRAPHICAL DISTRIBUTION WITHIN THE GAOLIGONG SHAN.— Fig. 18c. we examined a total of 9 specimens (5 males and 4 females), all from Fugong County on the eastern slope and crest of the northcentral part of the Gaoligong Shan (see Type material above for exact collection data). These localities are all in Core Area 3. OVERALL GEOGRAPHICAL DISTRIBUTION.— This species currently is known only from the northcentral part of the Gaoligong Shan, in western Yunnan Province, China. Trechus (Trechus) mingguangensis Deuve and Liang, sp. nov. (Figs. 19, 41b, 46–48) TYPE MATERIAL.— Holotype, a male, in IOZ, labeled: “CASENT 1038692”/ “CHINA, Yunnan, Tengchong County, Mingguang Township, Eighth Boundary Post Pass, N25.80984°/ E98.62084°, 2287 m, 23 May 2006,”/ “Stop # DHK-2006-037A, D.H. Kavanaugh, R.L. Brett, X.P. wang & D.Z.Dong collectors”/ “HOLOTYPE Trechus mingguangensis Deuve & Liang, sp. nov. designated 2016” [red label]. Paratypes (only 1): a female (in CAS) labeled: “CASENT 1038840”/ “CHINA, Yunnan, Tengchong County, Mingguang Township, small stream on Sw-facing slope below 7.9 airkm N of Zizhi village, 2200 m,”/ “N25.80314°/E98.62117°, 2200 m, 23 May 2006,”/ “Stop # DHK-2006-038A, D.H. Kavanaugh & D.Z. Dong collectors”/ “PARATYPE Trechus mingguangensis Deuve & Liang, sp. nov. designated 2016” [yellow label]. TYPE LOCALITY.— China, Yunnan, Tengchong County, Mingguang Township, Eighth Boundary Post Pass, N25.80314°/E98.62117°, 2287 m. DERIVATION OF SPECIES NAME.— The species epithet, mingguangensis, is derived from the name of the township in which the type locality is located, Mingguang, and the Latin suffix, -ensis, denoting place. DIAGNOSIS.— Adults of this species (Fig. 19a) can be distinguished from those of all other species in the region by the following combination of character states: size large (BL = 4.5 to 4.8 mm), apterous; body color reddish-brown; tempora glabrous, short and convex; pronotum transverse (ratio Pw/PL = 1.40), basal angles acute and sharp; elytra very slightly elongate, striae finely punctate, striae 1 to 4 deeply impressed, stria 5 more faintly impressed, striae 6 to 8 effaced or nearly so, recurrent stria terminated anteriorly at a slight convexity in line with the presumed location of stria 7 apically; two normal discal setae present, inserted next to stria 3, preapical seta present, inserted in a discal position next to stria 3 at apical one-fourth of elytra; median lobe of male aedeagus with a large sagittal aileron, apical lamella long and rectilinear, nearly straight, apex thin, endophallus with copulatory piece poorly defined (Fig. 19b). DESCRIPTION.— Size large, BL = 4.5 to 4.8 mm. Body color dark reddish-brown, shiny, appendages paler, yellowish- or reddish-tan, palpi pale yellow. Body surface smooth, only head capsule faintly alutaceous. Head. Moderate in size; eyes slightly reduced, moderately convex, but their diameter less than twice as long as tempora, the latter short, moderately convex and glabrous. Frons moderately flat-
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