(Proceedings submission caseby-case

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-