Lobrathium yagmuri, Assing, 2007

Assing, V., 2007, A revision of Palaearctic Lobrathium MULSANT & REY. III. New species, new synonyms, and additional records (Coleoptera: Staphylinidae: Paederinae), Linzer biologische Beiträge 39 (2), pp. 731-755 : 731-755

Lobrathium yagmuri nov.sp. ( Figs 27-37 , 42 )

H o l o t y p e 3: 09.VII.2006, Boruk Dağı, Doğanşehir, Malatya / Holotypus 3 Lobrathium yagmuri sp. n. det. V. Assing 2007 (cAnl). P a r a t y p e: 233, 3♀♀: same data as holotype (cAnl, cAss).

E t y m o l o g y: The species is dedicated to Ersen Aydın Yagmur, Gaziantep, who collected the type specimens.

D e s c r i p t i o n: 6.8-7.8 mm. Habitus as in Fig. 27 . Coloration: head, pronotum, anterior 3/5 of elytra, and abdomen blackish brown to blackish; posterior 2/5 of elytra reddish or reddish yellow; legs and antennae yellowish brown to reddish brown.

Head approximately as wide as long and of subcircular shape ( Fig. 28 ); posterior angles broadly rounded; puncturation moderately coarse, sparser in median dorsal area and denser on remainder of dorsal surface, with interstices narrower than diameter of punctures in lateral and anterior region; interstices without trace of microsculpture and glossy; eyes large ( Fig. 29 ), moderately projecting from lateral contours of head, horizontal diameter in lateral view approximately 0.65-0.70 times the distance between posterior margin of eyes and neck. Antennae of moderate length; antennomere III longer than II; IV-X oblong; X approximately 1.5 times as long as wide ( Fig. 30 ).

Pronotum slender, approximately 0.90-0.95 times as wide as head and 1.25 times as wide as long; puncturation similar to that of head ( Fig. 28 ); interstices without microsculpture and glossy, in lateral areas on average narrower than diameter of punctures.

Elytra approximately 1.20 times as wide and at suture as long as pronotum or nearly so ( Fig. 28 ); puncturation coarser than that of head and pronotum, not arranged in rows; interstices without microreticulation. Hind wings (fully?) developed.

Abdomen slightly narrower than elytra, widest at segment VII; puncturation fine and moderately dense; surface with distinct microsculpture composed of transverse meshes; posterior margin of tergite VII with palisade fringe.

750

751

3: sternite VII with distinct median impression of triangular shape in posterior 2/3, this impression with short, stout, and black modified setae ( Fig. 31 ); tergite VIII with weakly convex posterior margin ( Fig. 32 ); sternite VIII with pronounced median impression in posterior 2/3, this impression with short, stout, and black modified setae, posterior margin with moderately deep and moderately broad median excision ( Fig. 33 ); aedeagus with ventral process of distinctive morphology ( Figs 34-35 ).

♀: tergite VIII distinctly longer than in male, posterior margin angled ( Fig. 36 ); sternite VIII oblong, posterior margin convex, in the middle truncate ( Fig. 37 ).

C o m p a r a t i v e n o t e s: The new species is distinguished from all its congeners by the distinctive male primary and sexual characters. From other species of the subgenus Lobrathium occurring in Turkey, it is additionally separated as follows:

from L. ciliciae by large size, darker coloration, distinctly bicoloured elytra, distinctly larger eyes, longer and broader elytra, the presence of hind wings, and relatively shorter elytra; for illustrations of the male sexual characters of L. ciliciae see ASSING (2004);

from L. pravum by more circular head shape and a relatively larger head; for illustrations of the male sexual characters of L. pravum see ASSING & SCHÜLKE (2002);

from L. schillhammeri by slightly larger size, more circular head shape, a relatively larger head, and larger eyes; for illustrations of the male sexual characters of L. schillhammeri see ASSING & SCHÜLKE (2002);

from L. wunderlei – evidently its closest relative, as can be inferred from the similar derived general morphology of the male sexual characters – by the relatively larger and more circularly shaped head, the much larger eyes, and the slightly longer and broader elytra; for illustrations of the male sexual characters of L. wunderlei , whose aedeagus is smaller and has a ventral process of different shape, and whose male sternite VII has a shallower and less extensive impression without distinctly modified setae, see ASSING (2006);

from L. rugipenne by larger eyes, less oblong head, less coarse puncturation of the forebody, shorter legs, and completely different male sexual characters.

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 species has become known only from one locality ( Fig. 42 ) in Malatya, Turkey.

Figures

Figs 27-37: Lobrathium yagmuri nov.sp. (31-33, 35: holotype): (27) habitus; (28) forebody; (29) head in lateral view; (30) antenna; (31) male sternite VII; (32) male tergite VIII; (33) male sternite VIII; (34-35) aedeagus in lateral and in ventral view; (36) female tergite VIII; (37) female sternite VIII. Scale bars: 27-28: 1.0 mm; 29-37: 0.5 mm.

Fig. 42: Lobrathium yagmuri nov.sp.: Type locality (photo: S. Anlaş).