392 PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES Series 4, Volume 63, No. 12 Trechus (Trechus) qiqiensis Deuve and Kavanaugh, sp. nov. (Figs. 20, 37b, 42a, 46–48) TYPE MATERIAL.— Holotype, a male, in IOZ, labeled: “CASENT 1007384”/ “CHINA, Yunnan Province, Gaoligong Shan, Nujiang Prefecture, Nujiang State Nature Reserve, No. 12 Bridge Camp area, 16.3 airkm w of Gongshan,”/ “N27.71503°/E98.50244°, 2775 m, 15-19 July 2000, Stop#00-23A, D.H. Kavanaugh, C.E. Griswold, Liang H.-B., D. Ubick, & Dong D.-Z. collectors”/ “IMAGE” [green label]/ “HOLOTYPE Trechus qiqiensis Deuve & Kavanaugh, sp. nov. designated 2016” [red label]. Paratypes (at total of 11): 2 males and 4 females (in CAS, IOZ, MNHN) labeled: same as holotype, except first label “CASENT 1007380” to “CASENT 1007381” and “CASENT 1007382” to “CASENT 1007383” and “CASENT 1007385” to “CASENT 1007386”, respectively; 1 male and 2 females (in CAS, IOZ) labeled: “CASENT 1010345” and “CASENT 1010346” to “CASENT 1010347”/ “CHINA, Yunnan, Gongshan County, Cikai Township, 52.6 km w of Gongshan on Dulong Valley Road, 3360-3380 m,”/ “N27.77032°/E98.44661°, 1-2 October 2002, Stop #DHK-2002-034, D.H. Kavanaugh & P.A. Marek collectors”;1 male (in CAS) labeled: “CASENT 1015626”/ “CHINA, Yunnan, Gongshan County, Cikai Township, 48 km w of Gongshan on Dulong Valley Road, 3330 m,”/ “N27.78075°/E98.47000°, 13 November 2004, Stop # DHK-2004-086, D.H. Kavanaugh collector”; 1 male (in IOZ) labeled: “CASENT 1025832”/ “CHINA, Yunnan, Gongshan County, Bingzhongluo Township, Sw slope of Kawakarpu Shan, 0.3 km Sw of Chukuai Lake at campsite,”/ “N27.97686°/E98.47799°, 3750 m, 19 August 2006, Stop #DHK-2006-082, Y. Liu collector”. All paratypes also bear the following label: “PARATYPE Trechus qiqiensis Deuve & Kavanaugh, sp. nov. designated 2016” [yellow label]. TYPE LOCALITY.— China, Yunnan, Gongshan County, Qiqi Trail at No. 12 Camp, N27.71503°/E98.50244°, 2775 m. DERIVATION OF SPECIES NAME.— The species epithet, qiqiensis, is derived from the name of the ancient trail, Qiqi Trail, passing through the type locality, and the Latin suffix, -ensis, denoting place. DIAGNOSIS.— Adults of this species (Fig. 20a) can be distinguished from those of all other species in the region by the following combination of character states: size relatively large (BL = 4.0 to 4.2 mm), apterous; body color reddish-brown; eyes slightly convex; tempora glabrous, short and convex; pronotum transverse (ratio Pw/PL = 1.44), basal angles rectangular and sharp; elytra with striae 1 to 4 deeply impressed on disc but attenuated apically, remaining striae successively less distinct, the outermost effaced or nearly so; recurrent stria terminated anteriorly by a slight convexity in line with stria 7; two discal setae present, inserted on interval 3 next to stria 3; preapical seta present and inserted in a discal position on interval 3, next to either stria 2 or 3 in forward position near apical one-fourth of elytra; median lobe of male aedeagus large and robust, subapically bent ventrally, apical lamella sinuate and reflexed dorsally (Fig. 20b), endophallus with a more heavily sclerotized voluminous lobe or scaly fold. DESCRIPTION.— Size relatively large, BL = 4.0 to 4.2 mm. Body color reddish-brown, shiny, appendages concolorous but paler, palpi pale yellow. Body surface smooth, only head capsule faintly alutaceous. Head. Moderate in size; eyes only slightly projected, slightly more convex, their diameter less than twice as long as tempora, the latter short, convex and glabrous. Frons slightly flattened; frontal furrows deep, curved, continuous but attenuated posterior to the eyes. Two pairs of supraorbital setae present, the anterior pair inserted in foveae. Clypeus with four setae. Labrum with six setae, anterior margin distinctly concave. Mandibles short; right mandible distinctly tridentate with middle tooth closer to basal tooth (premolar) than to distal tooth, left mandible with a small slightly bifid process. Mentum and submentum not fused but suture between them only faintly impressed.
DEUVE ET AL.: CARABID BEETLE FAUNA OF THE GAOLIGONG MOUNTAINS 393 FIGURE 20. Trechus qiqiensis sp. nov.; a. Dorsal habitus (CASENT1007384). b. Median lobe of aedeagus of male (CASENT1007384), left lateral aspect. c. Map of locality records (red circles) for T.qiqiensis in the Gaoligong Shan region. Scale lines a, b = 0.5 mm, c = 100 km.