Inventory of the Carabid Beetle Fauna of the Gaoligong Mountains, Western Yunnan Province, China: Species of the Tribe Trechini (Coleoptera: Caraboidea), with Descriptions of Four New Genera, One New Subgenus and 19 New Species. Author Deuve, Thierry Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 - MNHN, CNRS, UPMC, EPHE, Muséum National d’Histoire Naturelle, Sorbonne-Universités, 57 rue Cuvier, CP 50, F- 75231 Paris cedex 05, France. Author Kavanaugh, David H. Department of Entomology, California Academy of Sciences, 55 Music Concourse Drive, Golden Gate Park, San Francisco, CA 94118, U. S. A. dkavanaugh@calacademy.org Author Liang, Hongbin Key Laboratory of Zoological Systematics, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China * Corresponding author: David H. Kavanaugh (dkavanaugh @ calacademy. org) text Proceedings of the California Academy of Sciences 2016 2016-10-14 63 12 341 455 journal article 10.5281/zenodo.13155283 0068-547X 13155283 4C790FE0-B735-4592-8827-EEF83C663CB1 Genus Trechepaphiopsis Deuve and Kavanaugh, gen. nov. TYPE SPECIES .— Trechepaphiopsis uniporosa , sp. nov. DERIVATION OF GENUS GROUP NAME .— The genus group name (feminine) is a combination of two other trechine generic names, Trechus and Epaphius , plus the Greek suffix, οψις (translated into Latin as - opsis ) meaning having the aspect of, here referring to a similarity with Epaphius members. DIAGNOSIS .— Adults of this genus (Figs. 25–31) can be recognized by the following combination of character states: size small to moderate (BL = 2.8 to 3.7 mm ), apterous; body color light to dark brown, reddish-brown, or piceous-brown, most members with dorsum slightly iridescent, dorsal surface glabrous except for isolated fixed setae typical for trechines, eyes also glabrous; head short, with eyes small; tempora convex, swollen in some members, sparsely pubescent; right mandible ( Fig. 16e ) with premolar tooth not fused with retinaculum and anterior point of the retinaculum free and displaced distally to form a separate tooth; mentum and submentum not fused; mentum with median tooth apical truncate or bifid; submentum with six setae; pronotum transverse, disc glabrous, basal foveae only slightly distinct, median basal area short and very transverse, delimited laterally by short, obliquely curved furrows, basal margin slightly projected posteriorly in most members, basal angles small, obtuse, rounded; elytra distinctly convex, with striae finely impressed, more or less punctate, lateral striae attenuated or effaced, recurrent stria terminated anteriorly with a bend or hook on interval 5 or 6, with a single discal seta on interval 3 next to stria three or without discal setae; preapical seta present, inserted next to stria 2; median lobe of male aedeagus of varied form, but endophallus membraneous, with spiny or scaly areas in some members, more or less sclerotized but without distinct sclerites. COMMENTS .— In subtropical China , the “ Epaphiopsis Complex” of genera is represented mainly by Pseudepaphius Uéno (1962) , members of which are distinguished from true Epaphiopsis members by their smooth pronotum and the presence of a single discal seta on interval 5 next to stria 5 ( Deuve 1995 ). Members of our new genus, Trechepaphiopsis , are easily distinguished by their elytra chaetotaxy. Genus Junnanotrechus Uéno and Yin (1993) also belongs in this generic complex and is probably closely related to Pseudepaphius , based on both morphological ( Deuve 2013a ) and molecular (A. Faille, unpublished) data. The illustration of the mandibles of Junnanotrechus elegantulus Belousov and Kabak (2014b, Fig. 1 ) confirms this phylogenetic affinity. The right mandible presents the same morphological features shared with Pseudepaphius ( Fig. 16e ) and Trechepaphiopsis members ( Fig. 16f ), namely the unfused premolar and the anterior tip of the retinaculum distinctly displaced anteriorly to form a separate tooth. GEOGRAPHICAL DISTRIBUTION .— This genus currently is known only from the Gaoligong Shan region of western Yunnan Province , China , where it is represented by the seven species treat- ed here. Three were previously described, all in genus Trechus , and four are described here as new. Each species apparently occupies only a narrow geographical range within the Gaoligong Shan, but their combined known ranges cover all but the northernmost part of the study area. As is reflected in the key to species presented below, only male members of most of these species can be reliably distinguished, and that only by extraction and examination of their genitalic structure. To date, only two of these species have been recorded as sympatric and syntopic, namely T. unisetosa (Deuve) and T. uniporosa sp. nov. (in Core Area 4). Two species, T. unisetulosa sp. nov. and T. unipilosa sp. nov. occur in the same general area but apparently have different, non-overlapping altitudinal ranges. So, at least for the present, locality data may aid in tentative identifications of females and undissected males, except for the first two species mentioned above.