Pseudobium anatolicum, Assing, 2006

Assing, V., 2006, New species and records of Pseudobium MULSANT & REY (Insecta: Coleoptera: Staphylinidae: Paederinae), Linzer biologische Beiträge 38 (1), pp. 385-391 : 389-391

Pseudobium anatolicum sp.n. ( Figs 11-18 )

Holotype Ƌ: TR - Muğla, NW Fethiye, Kargi, gravel river bank, 25 m, 36°43'21N, 20°03'08E, 31.III.2002, V. Assing / Holotypus Ƌ Pseudobium anatolicum sp. n. det. V. Assing 2005 (cAss). Paratypes: 1♀: same data as holotype (cAss) ; 2♀♀: TR - Muğla, No. 22, NW Fethiye, Kargi , 31.III.2002, 25 m, 36°43'21N, 20°03'08E, V. Assing & P. Wunderle (cWun) ; 1♀ [teneral?]: S- Türkei: Region Alanya, Karpuz-Ostufer südl. Tasgesigi , 50 m, 18b1) unter Kieseln , auf fr. Spülsaum-Sand über Hohlräumen , 17.III.2000, leg. Rose (cRos) .

D e s c r i p t i o n: Measurements (in mm) and ratios (range; n=5): AL: 1.78-1.87; HL: 0.76-0.82; HW: 0.60-0.66; PW: 0.50-0.54; PL: 0.79-0.85; EL: 0.85-0.94; EW: 0.71- 0.77; AW: 0.63-0.71; TiL: 0.57-0.62; TaL: 0.42-0.45; ML: 0.54; TL: 5.7-6.4; HL/HW: 1.20-1.29; PW /HW: 0.80-0.83; PW / PL: 0.60-0.64; EL/ PL: 1.05-1.11; EW/ PW: 1.42- 1.46; AW/EW: 0.89-0.92; TiL/TaL: 1.31-1.39.

Relatively large species; habitus as in Fig. 11 . Coloration of mature specimens somewhat variable: head dark reddish brown to blackish; pronotum blackish; elytra dark reddish brown to blackish brown, with the posterior area more or less extensively yellowish; abdomen blackish; legs with tibiae and tarsi yellowish to reddish yellow, and with the femora dark brown; antennae rufous to reddish brown.

Head of somewhat variable shape, posteriorly weakly tapering or almost subparallel, with broadly rounded posterior angles ( Fig. 12 ); puncturation rather coarse and welldelimited, interstices in central dorsal area on average 1-2 times as wide as diameter of punctures; microsculpture absent; eyes large and projecting from lateral outline of head ( Figs 12, 14 ), at least half the length of postocular region in dorsal view; antenna long and slender ( Fig. 13 ).

Pronotum narrower than head and subparallel ( Fig. 12 ); dorsal rows composed of approximately 20 punctures; microsculpture absent.

Elytra distinctly wider and at suture longer than pronotum; punctures of similar size as those of pronotum and arranged in distinct rows. Hind wings fully developed.

Abdomen narrower than elytra, widest at segment VII; puncturation of tergites III-VI moderately coarse and rather dense, with the interstices on average as wide as diameter of punctures; puncturation of tergites VII and VIII sparser and finer, with the interstices distinctly wider than diameter of punctures; tergites III-VI in anterior transverse impressions with pronounced microreticulation and in posterior area without microsculpture; tergites VII-VIII at most with indistinct microsculpture; posterior margin of tergite VII with palisade fringe.

Ƌ: sternite VII with weakly concave posterior margin, pubescence unmodified ( Fig. 15 ); sternite VIII as in Fig. 16 ; aedeagus with very long and acute apex ( Figs 17-18 ).

E t y m o l o g y: The name (Lat., adj.) is derived from Anatolia. C o m p a r a t i v e n o t e s: From all its congeners, the new species is best separated by the distinctive morphology of the aedeagus. In other species with a long and acute apex of the aedeagus ( P. labile (ERICHSON) , P. gridellii JARRIGE , P. peyerimhoffi ), this apex is more slender, curved, or apically dilated; in addition, these species are of smaller size. For illustrations of their aedeagi see COIFFAIT (1982). Pseudobium alanyense , which, too, occurs in southern Anatolia, is smaller, of darker coloration, has a more slender head, even larger eyes, shorter antennae, a finer puncturation of the pronotum and elytra, a distinctly microsculptured and almost completely matt abdomen, and an aedeagus of different morphology.

D i s t r i b u t i o n a n d b i o n o m i c s: The type localities are situated in southwestern Anatolia (Muğla and Antalya provinces). The specimens from the surroundings of Fethiye were collected by washing a river bank; the paratype from the environs of Alanya is apparently teneral.

Figures

Figs 11-18: Pseudobium anatolicum sp.n. (holotype). (11) habitus; (12) forebody; (13) antenna; (14) head in lateral view; (15) Ƌ sternite VII; (16) Ƌ sternite VIII; (17-18) aedeagus in lateral and in ventral view. Scale bars: 11-12: 1.0 mm; 13-14: 0.5 mm; 15-18: 0.2 mm.