Eleven new species and a new country record of Pselaphodes (Coleoptera: Staphylinidae: Pselaphinae) from China, with a revised checklist of world species Author Huang, Meng-Chi Author Li, Li-Zhen Author Yin, Zi-Wei pselaphinae@gmail.com text Acta Entomologica Musei Nationalis Pragae 2018 2018-11-14 58 2 457 478 journal article 8152 10.2478/aemnp-2018-0035 92fd172c-9d32-419f-9ea4-924f1cecb1b5 1804-6487 4488739 B1327F4F-90E6-4BE1-83CA-0D5BE068E6C3 Pselaphodes antennarius sp. nov. ( Figs 4A , 5 ) Type material ( 1 ex. ). HOLOTYPE : ♁, CHINA : ‘ China : N. Guizhou , Daozhen Co. ( AEA ẆȒẇaeẇŊàR ), Dashahe ( † ÒȐ ), 29°10′12″N , 107°33′36″E , mixed leaf litter, sifted, 1730 m , 07.vii.2015 , Jiang , Peng , Tu & Zhou leg.’ ( SNUC ). Diagnosis of male. Length 2.88 mm ; antennomere VII slightly broadened mesally, antennomere IX broadly triangular, with large cavity on upper surface; antennomere X with large lamina-like projection at base; metaventral processes short, apically narrowed; protrochanter and profemur each with one distinct ventral spine, mesotrochanter with multiple protuberances. Description. Male ( Fig. 4A ). Body reddish brown, BL 2.88 mm . Head slightly longer than wide, HL 0.63 mm , HW 0.60 mm ; each eye composed of about 35 facets. Antennomeres IX–XI ( Fig. 5A ) forming distinct club, antennomere VII slightly broadened mesally, antennomere IX broadly triangular, with large cavity on upper surface, antennomere Xwith large lamina-like projection at base. Pronotum ( Fig. 5B ) as long as wide, PL 0.55 mm , PW 0.55 mm , constricted at apical half. Elytra wider than long, EL 0.80 mm , EW 1.15 mm . Metaventral horn-like processes ( Fig. 5C ) short, apically narrowed. Protrochanter with acute ventral spine, profemur with distinct ventral spine ( Fig. 5D ); mesotrochanter ( Fig. 5E ) with multiple protuberances; metatrochanter and metafemur ( Fig. 5F ) simple.Abdomen broad at base and narrowed apically, AL 0.90 mm , AW 1.13 mm . Sternite IX ( Fig. 5G ) semi-membranous. Length of aedeagus ( Figs 5 H–J) 0.43 mm ; median lobe asymmetric, parameres apically narrowed, endophallus composed of one elongate and two short sclerites. Fig. 4. Dorsal habitus of Pselaphodes males. A – P. antennarius sp. nov ; B – P. baoxingensis sp. nov. Scale bar: 1 mm. Female . Unknown. Comparative notes. The new species is placed as a member of the P. walkeri species group based on the asymmetrical male antennomere VII. The unique form of antennomere IX and antennomere X, short metaventral processes, multiple protuberances of the mesotrochanter, and structure of the aedeagus readily separate P. antennarius from all other similar congeners. Etymology. The specific epithet is Latin adjective referring to the strongly modified antennomeres IX–X in the male of the new species. Distribution. China : Guizhou .