Taxonomical study on the genus Pselaphodes Westwood (Coleoptera: Staphylinidae: Pselaphinae) from China. Part I. Author Yin, Zi-Wei Author Li, Li-Zhen Author Zhao, Mei-Jun text Zootaxa 2010 2512 1 25 journal article 10.5281/zenodo.294046 78c33ed2-423a-46a1-b3ad-4e71ca9e358c 1175-5326 294046 Pselaphodes subtilissimus Yin, Li & Zhao sp. nov. ( Figs. 12 , 24 , 39, 40, 41, 75, 76, 77, 89, 101, 124, 125, 137, 149, 164, 165, 175) Type material. Holotype : CHINA : Yunnan Prov.: 3, Nabanhe N. R., Guomenshan Mt. ( 22°01’26”N 100°53’32”E ), elev. 1,030 m , Jia-Yao Hu & Liang Tang leg., 21.ix.2008 ( SHNUC ). Description. Male. Body ( Fig. 12 ) reddish-brown, maxillary palpi and tarsi lighter in color; body length 3.39 mm, combined width of elytra 1.32 mm. Head longer than wide, frontal margin anterior to eyes narrowed. Antenna ( Fig. 101 ) covered with pubescence, with scape as long as next three segments combined, pedicel short, antennomeres III–VII about equal in length, VIII shorter about as long as pedicel, IX–XI clubbed, each elongate, IX more than twice as long as VIII, about 1.25 times as long as X, rounded at apex. Maxillary palpus ( Fig. 149 ) with palpomere I minuscule, II short and pedunculate, II–IV each protuberant on lateral margin. Mandibles ( Fig. 137 ) very similar to those of P . cornutus . Pronotum longer than wide, narrowed from basal two-thirds toward apex. Elytra ( Fig. 24 ) similar to those of P . declinatus . Hind wing ( Fig. 89 ) similar to that of P . miraculum , but straight at posteroapical margin. Legs (Fig. 75–77) extremely elongate, not armed with spines. Abdomen (Figs. 39–41) with tergite IV more than twice as long as V; tergite VIII (Fig. 125) close to that of P . latilobus , sternite VIII (Fig. 124) most similar to that of P . torus , but more deeply emarginate apically. Aedeagus ( Figs. 164, 165 ) with median lobe expanded, widest at middle, then narrowed toward apex; endophallus ( Fig. 175 ) with three well-sclerotized spines, each narrowed at apex, middle one longest, left one shortest. Parameres paired, each elongate, rounded at apex, with three long apical setae. Female unknown. Remarks. This species is characterized by its extremely elongate legs, and unique shape of the aedeagus. Distribution. China (Yunnan Province). Etymology. The species name is an adjective (" subtilissimus " (Latin) means "the most slender, delicate") and refers to the elongate legs of the species.