Tychus sodalicius Kurbatov

Sabella, Giorgio, Besuchet, Claude & Kurbatov, Sergey A., 2011, New species of Tychini from Turkey and Japan (Coleoptera: Staphylinidae: Pselaphinae), Zootaxa 2764, pp. 22-34 : 24-25

Tychus sodalicius Kurbatov , sp. n.

( Figs. 2 , 12–13 )

Type material. Holotype: TURKEY: Hatay Prov.: ɗ, Antakya, Ziyaret Daği, Leylekli (Bachaue), 35°57’47”N 36°02’57”E, 510 m, 22.IV.2004 (C. Besuchet) ( MHNG). Paratype: TURKEY: Hatay province: ɗ, same data as holotype ( MHNG).

Description. Body length 1.4–1.5 mm. Winged. Body uniformly dark brown with reddish elytra and antennae, and yellowish legs and palpi.

Head wider (0.26–0.28 mm) than long (0.22–0.23 mm), frontal rostrum 0.135–0.14 mm wide and 0.05 mm long, a small tooth in front. Eyes well developed with about 30 ommatidia. Last segment of maxillary palpi 0.18 mm long and 0.09 mm wide.

Pronotum wider (0.34–0.36 mm) than long (0.27–0.29 mm) with lateral antebasal foveae well impressed.

Elytra wider (0.58–0.62 mm) than long (0.46–0.52 mm) with humeri not very protruding. Discal fovea extended posteriorly in a discal stria reaching less than half elytral length.

Abdomen with 1st tergite 0.175–0.18 mm long, basal impression extending on more than half of tergite width.

Male. Antennae ( Fig. 2 ) 0.69–0.725 mm long, club 0.25–0.275 mm long; scapus longer than wide; segments 2 and 3 distinctly longer than wide; segment 3 longer narrowed at the base; 4 slightly wider than long; 5 wider than 4 and longer than wide; 6 and 7 wider than long, 8 strongly wider than long and shorter than previous segments. Metaventrite with slight median impression. Femora and tibiae of all legs slightly thickened, posterior margin of mesotrochanters extended into long and sharp median spine. Mesotibiae and metatibiae with small apical spur. All abdominal sternites not modified. Aedeagus ( Figs. 12–13 ) 0.375–0.39 mm long, dorsal apophysis of median lobe sinuate and canaliculate enlarged at apex, with medial margin in distal third prolonged into two short spine-like processes extended medially, and in basal third with spine-like apophysis directed medially. Ventral portion of median lobe shorter than dorsal apophysis, laterally curved and with spine-like apex.

Female. Unknown.

Comparative notes. Tychus sodalicius is similar to T. galileus Sabella & Kurbatov, 2002 but distinguished from the latter by the shape of the dorsal apophysis of the median lobe and a thinner and longer ventral portion of the median lobe of aedeagus.

Figures

FIGURES 1 – 4. Antennae of Tychus. 1 — T. viti sp. n., holotype, male from Elma Daġi. 2 — T. sodalicius sp. n., holotype, male from Ziyaret Daġi. 3 — T. latebrosus sp. n., holotype, male from Reşiadye Geç .. 4 — T. latebrosus sp. n., paratype, female from Doluca. Scale bar 0.1 mm.

FIGURES 12 – 13. Aedeagus of Tychus sodalicius sp. n., holotype, male from Ziyaret Daġi (Antakya). 12 — Ventral view. 13 — Lateral view. Scale bar 0.1 mm.