On some East Palaearctic Tetartopeus species (Coleoptera: Staphylinidae: Paederinae) Author Assing, V. text Linzer biologische Beiträge 2011 2011-12-19 43 2 1179 1197 journal article 10.5281/zenodo.5326103 0253-116X 5326103 Tetartopeus fragilis ( SHARP 1889) ( Figs 22-26 ) Lathrobium fragile SHARP 1889: 258 . T y p e m a t e r i a l e x a m i n e d: Lectotype , present designation: " Lathrobium fragile Type D. S. Osaka . 7.7.1881 . Japan Lewis [written next to specimen] / Japan . G. Lewis. / Type / Syntype / Sharp Coll 1905-313. / Lathrobium fragile Sharp, P.M. Hammond det. 1979 / Lectotype Lathrobium fragile Sharp , des. LE Watrous 1980 / Lathrobium fragile Sharp, V.I. Gusarov det. 1993 / Lectotypus Lathrobium fragile Sharp , desig. V. Assing 2011 / Tetartopeus fragilis (Sharp) , det. V. Assing 2011" ( BMNH ). C o m m e n t: The original description is based on "five examples" from "Ogura lake, 7th July" ( SHARP 1889 ). One of the syntypes , a male dissected prior to the present study, was located in the collections of the BMNH. It has a lectotype label by Watrous attached Figs 22-29 : Tetartopeus fragilis (SHARP) , lectotype ( 22-26 ), and T. pallipes (SHARP) ( 27-29 ): ( 22 ) forebody; ( 23 ) male tergite VIII; ( 24 ) male sternite VIII; ( 25 ) aedeagus in lateral view; ( 26 ) internal structures of aedeagus (extruded); ( 27 ) female tergite VIII; ( 28 ) female sternite VIII; ( 29 ) female tergite X. Scale bars: 22: 1.0 mm; 23-24, 27-28: 0.5 mm; 25-26, 29: 0.2 mm. to it, but the designation was never published. The specimen is here formally designated as the lectotype . D i a g n o s i s: Small and slender species; length of forebody 2.8 mm . Body darkbrown; elytra with pronounced and extensive yellowish spots in postero-lateral angles; legs and antennae reddish. Head distinctly oblong. Elytra approximately 0.9 times as long as pronotum ( Fig. 22 ). : tergite and sternite VIII as in Figs 23-24 ; aedeagus small, approximately 0.75 mm long; ventral process very slender and very weakly curved in lateral view ( Fig. 25 ); internal sac with four large sclerotized structures ( Fig. 26 ). D i s t r i b u t i o n: This species is currently known only from Japan .