Sunius pinnatus, Assing, 2006

Assing, Volker, 2006, On the Turkish species of Sunius. VII. Five new micropterous species from western Anatolia and additional records (Coleoptera: Staphylinidae, Paederinae), Beiträge Zur Entomologie = Contributions to Entomology 56 (2), pp. 297-315 : 308-309

Sunius pinnatus sp. n. ( Figs 49-62 , Map 1 )

Type material:

Holotype : TR [30] - Manisa, 10 km S Manisa, Karadağ , 1200 m, roadside, 38°33'26N, 27°23'13E, 15.IV.2006, P. Wunderle / Holotypus  Sunius pinnatus sp. n. det. V. Assing 2006 (cAss) . Paratypes: 2 : same data as holotype (cWun); 1 : same data, but leg. Assing (cAss) .

Description:

Small species, 2.7-3.3 mm (abdomen extended). Habitus as in Fig. 49 . In external morphology extremely similar to S. pinniger and similar species ( Figs 50-51 ). Distinguished only by the male sexual characters:

: sternite VII not distinctly modified ( Fig. 52 ); sternite VIII with tubercle of distinctive shape ( Figs 53-56 ); aedeagus shaped as in Figs 57-59 , internal sac without spines, with minute subapical and pair of slender apical internal structures ( Figs 60-61 ).

Etymology: The name (Lat., adj.: with wings) refers to the shape of the tubercle on the male sternite VIII.

Comparative notes:

Based on the male sexual characters, this species is most closely related to S. aculeatus from the Boncuk Dağı in Muğla and to S. pinniger from the Ak Dağ on the peninsula to

the northwest of Izmir. It is separated from both species reliably only by the shape of the aedeagus and of the tubercle on the male sternite VIII.

Distribution and bionomics:

Sunius pinnatus was discovered in the Karadağ range (Spil [=Sipil] nature reserve) to the south of Manisa, where it is probably endemic, as is suggested by the restricted distributions of other micropterous Sunius species occurring in Turkey and by the adaptive reductions of eye size, elytra, hind wings, and pigmentation. The type specimens were found under stones on a patch of calcareous grassland very close to the roadside at an altitude of 1200 m, together with an undescribed species of Geostiba THOMSON ( Fig. 62 ).

Figures

Map 1: Distributions of Sunius bozdagensis (open circle), S. pinniger (large black square), S. fortespinosus (filled circles), S. sexspinosus (open square), and S. pinnatus (small black square) in western Anatolia.

Figs 49-61: Sunius pinnatus sp. n.: habitus (49); forebody (50); head in lateral view (51),  sternite VII (52);  sternite VIII in ventral and in lateral view (53-54); tubercle of  sternite VIII in ventral and in lateral view (55-56); aedeagus in lateral and in ventral view (57-58); ventral process of aedeagus in ventral view (59); apical internal structure of aedeagus in ventral view (60); subapical internal structure of aedeagus (61). Scale bars: 49: 1.0 mm; 50-51: 0.5 mm; 52-54: 0.2 mm; 55-61: 0.1 mm.

Fig. 62: Type locality of Sunius sexspinosus sp. n.