Tetartopeus pallipes ( SHARP 1889)

Assing, V., 2011, On some East Palaearctic Tetartopeus species (Coleoptera: Staphylinidae: Paederinae), Linzer biologische Beiträge 43 (2), pp. 1179-1197 : 1187

Tetartopeus pallipes ( SHARP 1889) ( Figs 27-38 )

Lathrobium pallipes SHARP 1889: 257 f.

T y p e m a t e r i a l e x a m i n e d: Lectotype, present designation: " Lathrobium pallipes Type D. S. Kioto 2.7.1881. Japan Lewis [written next to specimen] / Japan. G. Lewis. / Type / Syntype / Sharp Coll 1905-313. / Lathrobium pallipes Sharp, P.M. Hammond det. 1979 / Lectotype Lathrobium pallipes Sharp, des LE Watrous 1980 / Lathrobium pallipes Sharp, V.I. Gusarov det. 1993 / Lectotypus Lathrobium pallipes Sharp , desig. V. Assing 2011 / Tetartopeus pallipes (Sharp) , det. V. Assing 2011" ( BMNH).

A d d i t i o n a l m a t e r i a l e x a m i n e d: Russia: 2, 1, Primorskiy Kray, Ussuriskiy Reserve, Kordon Peishula , 13.-20.VIII.1998, leg. Sundukov (cSch, cAss) ; 3, 4

[ 3 teneral], Primorskiy Kray, Ussuriskiy Reserve, Komarovo-Zapovednoe , 43°39'N, 132°21'E, 20.- 29.VII.1999, leg. Sundukov (cSch, cAss) ; 11, 2, Primorskiy Kray, 70 km N Chuguyevka, Samarka, Gordeyevskaya mt. , bank of Shuravlevka , 44°46'N, 134°13'E, 300, 29.V.1993, leg. Zerche ( SDEI, cAss) ; 1, Primorskiy Kray, Ussurijskiy Distr., Kajmanovka , 132°14', 43°38'E, 31.VII.1999, leg. Sundukov (cSch) ; 1, 1, Primorskiy Kray, Tschernye Gory, Venedivnovo , 1.- 3.VIII.1990, leg. Pütz ( SDEI). Japan: 2, Hokkaido, Nopporo Forest Park, 27.V.& 5.VI.2008, leg. Lackner (cAss) ; 2, Honshu, Toride, Tonegawa river , 20.VIII.1983, leg. Morita ( SDEI) ; 1 [teneral], Honshu, Fukushima, Sanegawa , 15.VIII.1988 ( SDEI) ; 1, Honshu, Kyoto, Mt. Amaishi , 22.VII.1995, leg. Ito (cAss) .

C o m m e n t: The original description is based on three syntypes, one from "Yokohama, 7th April", one from " Kioto, 2nd August", and one from " Niigata, 6th September" ( SHARP 1889). One of the syntypes, a male from " Kioto ", was located in the collections of the BMNH. It had been dissected prior to the present study and has a lectotype label by Watrous attached 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: Species of intermediate size; length of forebody 3.1-3.6 mm. Body uniformly blackish-brown to black, elytra with distinct yellowish spots in postero-lateral angles; legs reddish; antennae reddish, with antennomeres III-IX more or less distinctly infuscate. Elytra approximately as long as pronotum ( Fig. 30 ).

: tergite and sternite VIII as in Figs 31-33 ; aedeagus 0.8-1.0 mm long; ventral process very slender both in lateral and in ventral view ( Figs 34-37 ), bent in apical third (lateral view), and apically only indistinctly hooked (lateral view); internal sac with four large sclerotized structures ( Fig. 38 ).

: tergite VIII angularly produced posteriorly ( Fig. 27 ); sternite VIII moderately produced posteriorly, posterior margin convex ( Fig. 28 ); tergite X relatively small and without carina ( Fig. 29 ).

D i s t r i b u t i o n: According to SMETANA (2004), T. pallipes has been reported from Japan, China, and South Korea. Owing to possible confusion with the similar T. bimaculatus (see below), however, the records from China and South Korea require revision; at least those from China probably refer to T. bimaculatus . Confirmed records are currently known only from Japan and the Russian Far East (new record).

Figures

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.

Figs 30-38: Tetartopeus pallipes (SHARP) (31-32, 36, 38: lectotype): (30) forebody; (31) male tergite VIII; (32-33) male sternite VIII; (34-36) aedeagus in lateral view; (37) aedeagus in ventral view; (38) internal structures of aedeagus (extruded). Scale bars: 30: 1.0 mm; 31-38: 0.5 mm.