Tychus triumphator Sabella, 2012

Sabella, Giorgio, Brachat, Volker & Kurbatov, Serguei A, 2012, New species of Tychus from Greece and Turkey (Coleoptera, Staphylinidae, Pselaphinae), Revue suisse de Zoologie 119 (2), pp. 195-214 : 196-198

Tychus triumphator Sabella sp. n. Figs 1-2, 11-12, 23

HOLOTYPE: MHNG, 3; Greece, Lesbos Island , Labou Mili, 110 m, 39°08’06’’N 26°23’18’’E; 19.03.2005; A. Lompe & H. Meybohm.

PARATYPES: MHNG, 13 and 1♀; Greece, Lesbos Island , same data as holotype; A. Lompe & H. Meybohm .- PCVB, 13; same data as holotype; A. Lompe & H. Meybohm .- PCVB, 13; Greece, Lesbos Island , Pigi, 90 m, 39°10’58’’N 26°26’05’’E; 21.03.2005; A. Lompe & H. Meybohm .

FIGS 1–5

Antennae of Tychus . (1) T. triumphator , holotype. (2) T. triumphator , female paratype from Labou Mili (Lesbos Island). (3) T. meybohmi , holotype. (4) T. nothus , holotype. (5) T. nothus , female paratype from Kadirli (Kahramanmaras,). Scale bar 0.1 mm.

DESCRIPTION: Length 1.45-1.50 mm. Winged. Body dark brown in male, lighter brown in female, with reddish elytra and antennae, abdomen black, legs yellowish and palpi yellow.

Head slightly wider (0.275-0.285 mm) than long (0.250-0.260 mm), frontal rostrum 0.135-0.140 mm wide and 0.080 mm long. Eyes well developed (24-28 facets). Apical segment of maxillary palpi 0.150 mm long and 0.075 mm wide.

Pronotum wider (0.330-0.350 mm) than long (0. 300 mm) with lateral antebasal foveae in well marked impressions.

Elytra wider (0.600- 0.610 mm) than long (0.500- 0.525 mm) with humeri slightly protruding. Discal fovea joined to discal stria, latter reaching elytral mid-length.

Abdomen with first tergite 0.175-0.180 mm long, basal impression extending on about over half of tergal width.

Male: Antennae (Fig. 1) 0.725-0.740 mm long, club 0.290 mm long; scape distinctly longer than wide; antennomeres II and III slightly longer than wide; IV wider than III and distinctly wider than long; V wider than IV and strongly wider than long; antennomeres VI, VII and VIII strongly wider than long, VI and VII subequal. All femora and tibiae slightly thickened, posterior margin of mesotrochanters prolonged into long and sharp median spines, mesotibiae each with small subapical tooth, metatibiae each with evident apical spur. Aedeagus (Figs 11-12) 0.315-0.325 mm long.

Female: Antennae (Fig. 2) 0.665 mm long, club 0.275 mm long; scape and antennomere II distinctly longer than wide; III slightly longer than wide; IV as long as wide; V wider than IV and VI and slightly wider than long; antennomeres VI, VII and VIII wider than long, VI shorter than VII. Genital plate as in Fig. 23.

COMMENTS: Tychus triumphator sp. n. is similar to T. rhodensis Sabella, Bueckle, Brachat, 1998 . Males of both species are easily distinguished by the shape of the antennae with antennomeres IV-VIII, especially IV and V, which are strongly thickened in T. triumphator (not thickened in T. rhodensis ), by all abdominal sternites not modified in T. triumphator (first and second sternites modified in T. rhodensis ), and by the different shape of the apex of the ventral portion of the aedeagal median lobe. Females of both species are distinguished only by the shape of the genital plate, which has more rounded sides in T. triumphator sp. n.