Hypnogyra laevissima

Assing, Eitter Volker, 2018, On Hypnogyra laevissima (R, 1898) (Coleoptera: Staphylinidae: Staphylininae: Xantholinini), Linzer biologische Beiträge 50 (1), pp. 41-45 : 42-44

Hypnogyra laevissima ( REITTER, 1898), revalidated ( Figs 1-4 , Map 1 )

Xantholinus laevissimus REITTER, 1898: 116.

Xantholinus (Metacyclinus) laevissimus: REITTER (1908).

Xantholinus tenuipunctus FAUVEL, 1900: 229; synonymy by REITTER (1908).

Phalacrolinus laevissimus: COIFFAIT (1972).

Xantholinus (Megalinus) laevissimus: BORDONI (1975).

Megalinus laevissimus: BORDONI (1999).

Megalinus laevissimus: HERMAN (2001).

Hypnogyra laevissima : BORDONI (2008).

Hypnogyra laevissima : SCHÜLKE & SMETANA (2015).

Synonym of Hypnogyra angularis (GANGLBAUER, 1895): BORDONI (2017).

T y p e m a t e r i a l e x a m i n e d: Lectotype ♂ [dissected prior to present study; aedeagus damaged and malformed]: " Kasp. Meer-Geb., Talysch , 1897 Korb / coll. Reitter / X. laevissimus m. 1898 / Holotypus Xantholinus laevissimus Reitter 1898 [curator label] / Xantholinus ( Megalinus) laevissimus Reit . sensu meo, Det. A. Bordoni 1972 / Hypnogyra laevissima (Rtt.) , Bordoni det. 2007 / Hypnogyra laevissima Reitter , det. V. Assing 2018" ( HNHM) . Paralectotype ♀: "Caspi.-M.-Gebiet, Hamarat [= Gamarat; 38°39'N, 48°35'E], Leder (Reitter) / coll. Reitter / Paratypus Xantholinus laevissimus Reitter 1898 [curator label] / Hypnogyra laevissima (Rtt.) , Bordoni det. 2007 / Hypnogyra laevissima Reitter , det. V. Assing 2018" ( HNHM) .

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: Iran: 1♂, Mazandaran, Nowshahr [36°39'N, 51°30'E], VII-IX.1961, leg. J. Klapperich ( HNHM) ; 1♂, Mazandaran, Haft Khal Forest Station , 36°18'N, 53°31'E, 1840 m, flight interception trap, 20.VII.2017, leg. Barimani (cAss) .

C o m m e n t: Hypnogyra laevissima undoubtedly represents a distinct species distinguished from the widespread H. angularis by both external and the male sexual characters, particularly by the coloration, the absence of microsculpture on the head and the pronotum ( Fig. 1 ), the number of punctures of the dorsal series of the pronotum, and the internal structures of the aedeagus. In H. laevissima , the pronotum is at least partly (anterior and antero-lateral portions, posterior margin) reddish and the elytra are infuscate in the middle and laterally. The dorsal series are each composed of usually 1+6 or 1+7 punctures. The internal structures of the aedeagus ( Figs 2-4 ) are less strongly sclerotized, more slender, and the sclerotized spines are more numerous and larger in relation to the internal tube. In H. angularis, on the other hand, the head and pronotum have shallow, but distinct microsculpture, the pronotum is uniformly blackish, the elytra are uniformly yellowish to reddish, the dorsal series of the pronotum are each composed of usually 1+9 or 1+10 punctures, and the internal sclerotized spines of the aedeagus are less numerous and smaller in relation to the internal tube ( Figs 5-6 ). For illustrations of the habitus and the aedeagus in situ of H. angularis see ASSING (2012).

The currently known distribution of H. laevissima is confined to Azerbaijan and North Iran ( Map 1 ).

Figures

Map 1: Known distribution of Hypnogyra laevissima.

Figs 1-6: Hypnogyra laevissima (1-4) and H. angularis (5-6): (1) head and pronotum; (2-3) aedeagus; (4-6) internal structures of aedeagus in squeeze preparation. Scale bars: 1: 1.0 mm; 2-6: 0.5 mm.