New species, synonymies, combinations, and records of micropterous Athetini from China (Coleoptera: Staphylinidae: Aleocharinae) Author Assing, Volker text Beiträge Zur Entomologie = Contributions to Entomology 2021 2021-06-30 71 1 87 101 journal article 10.21248/contrib.entomol.71.1.087-101 0005-805X 5743217 A99D00D0-EBC6-48FF-8AF3-C5573E8844AE Atheta ( Microdota ) minica spec. nov. urn:lsid:zoobank.org:act: E325AF25-C1DD-441C-B7D5-AB2ACF109581 (Figs 8, 39–46) Type material : Holotype : “ CHINA [22] – N-Sichuan, pass ENE Songpan , 4080 m , 32°44'54"N , 103°43'43"E , sifted, 10.VIII.2012 , V . Assing / Holotypus  Atheta minica sp. n. , det. V . Assing 2020 ” (cAss) . Paratypes : 2 , 1 : same data as holotype (cAss); 18 exs : same data, but leg. Schülke ( MNB , cAss); 1 : “ CHINA : N-Sichuan [CH12-19], 47 km N Songpan , road S 301 km 118, N Gongangling pass, 33°03'15"N , 103°43'36"E , 3390 m , spruce forest with shrubs, litter, moss, & mushrooms sifted, 9. VIII .2012, leg. M. Schülke ” ( MNB ); 1 : “ CHINA : N-Sichuan [CH12-24], 35 km NNW Songpan , 32°55'32"N , 103°25'56"E , 3600 m , moist N-slope with Salix and other shrubs, litter, grass roots & moss sifted, 11. VIII .2012, leg. M. Schülke ” ( MNB ). Etymology : The specific epithet is an adjective derived from Min Shan, the mountain where the type locality is situated. Description : Body length 1.7–2.4 mm ; length of forebody 0.8–1.0 mm. Habitus as in Fig. 8. Colouration: head blackish-brown to black; pronotum and elytra brown to dark-brown; abdomen black with segments III–IV reddish to brown and the apex (segments VIII–X) yellowish; legs yellow; antennae dark-brown to blackish-brown with the basal three antennomeres dark-yellow. Head weakly transverse; punctation extremely fine, barely noticeable in the pronounced microreticulation. Eyes small and flat, composed of approximately ten ommatidia. Antennae moderately incrassate; antennomeres IV transverse, V–X of increasing width and increasingly transverse, X approximately twice as broad as long. Pronotum approximately 1.2 times as broad as long and 1.2 times as broad as head; punctation similar to that of head, but somewhat denser; interstices with pronounced microreticulation; pubescence directed anteriad along midline. Elytra approximately half as long as pronotum; punctation less fine than that of head; interstices with microsculpture. Hind wings completely reduced. Abdomen broader than elytra; punctation very fine, moderately dense on anterior tergites and sparser on posterior tergites; interstices with microreticulation composed of predominantly transverse meshes; posterior margin of tergite VII without palisade fringe; tergite VIII ( Fig. 43 ) without evident sexual dimorphism, posterior margin weakly convex. : sternite VIII ( Fig. 42 ) weakly transverse, posterior margin strongly convex; median lobe of aedeagus 0.25– 0.27 mm long and shaped as in Figs 39–41 . : posterior margin of sternite VIII with pronounced, V-shaped median incision and with moderately modified setae ( Fig. 44 ); spermatheca ( Figs 48–49 ) with long and slender proximal portion. Comparative notes : Atheta minica is distinguished from other Microdota species by the primary and secondary sexual characters. For illustrations of micropterous consubgeners reported from China see ASSING (2002 , 2004 , 2006 , 2009 , 2011 ) and PACE (1995 , 1999 , 2004 ). Distribution and natural history : The species was found in three localities to the north and northwest of Songpan, Northwest Sichuan . The specimens were sifted from litter, moss, and grass roots in a slope with scree and shrubs, in a moist slope with willow and other shrubs, and in a spruce forest with shrubs at high altitudes ( 3390–4080 m ).