Sunius pinniger, 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: 301-303

publication ID 10.21248/contrib.entomol.56.2.297-315


persistent identifier

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scientific name

Sunius pinniger

sp. n.

Sunius pinniger   sp. n. ( Figs 12-24 View Figs 12-23 View Fig , Map 1 View Map 1 )

Type material:

Holotype : TR [4] - Izmir, 440 m, ca. 80 km NW Izmir, W Karaburun, 38°37'39N, 26°29'26E, 4.IV.2006, V. Assing GoogleMaps   / Holotypus  Sunius pinniger   sp. n. det. V. Assing 2006 (cAss)   . Paratypes: 3 , 2 : same data as holotype (cAss, cWun); 2    : same data, but leg. S. Anlaş (cAnl)   .


Small species, 2.6-3.3 mm (abdomen extended). Habitus as in Fig. 12 View Figs 12-23 . Coloration: forebody uniformly yellowish red; abdomen dark brown to blackish, with the lateral and posterior tergal margins and the apex more or less extensively rufous; legs pale yellowish; antennae yellowish red.

Head weakly oblong, approximately 1.1 times as long as wide; lateral margins subparallel in dorsal view; puncturation coarse, well-defined, and rather dense, in median dorsal area slightly sparser; microsculpture absent ( Fig. 13 View Figs 12-23 ); eyes small ( Fig. 14 View Figs 12-23 ), weakly projecting from lateral outline of head, postocular region in dorsal view approximately 3 times as long as eyes.

Pronotum approximately 0.90-0.95 times as wide as head and 1.10-1.15 times as long as wide; microsculpture absent; puncturation very dense (except for the impunctate median line) and almost as coarse as that of head ( Fig. 13 View Figs 12-23 ).

Elytra approximately as wide as and at suture about 0.70-0.75 times as long as pronotum; puncturation ill-defined, finer and shallower than that of pronotum; microsculpture shallow ( Fig. 13 View Figs 12-23 ). Hind wings reduced.

Abdomen about 1.15-1.20 times as wide as elytra, widest at segments VI-VII; puncturation moderately dense and fine; microsculpture shallow, but distinct; posterior margin of tergite VII without palisade fringe.

: sternite VII not distinctly modified ( Fig. 15 View Figs 12-23 ); sternite VIII in the middle with fin-like tubercle or carina ( Figs 16-18 View Figs 12-23 ); aedeagus shaped as in Figs 19-23 View Figs 12-23 , internal sac without spines and without flagellum, but with small, weakly sclerotised structure ( Fig. 23 View Figs 12-23 ).

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

Comparative notes and phylogenetics:

In the keys in ASSING (2005b, 2005c), S. pinniger   would key out at couplet 6 together with S. aculeatus ASSING   , an endemic from the Boncuk Dağı in Muğla. Based on the similarly derived morphology of the aedeagus and the synapomorphic modifications of the male sternite VIII, both species very close relatives. They are reliably distinguished only by the shape of the process of the male sternite VIII (in S. aculeatus   longer, more slender in ventral view, and more erect in lateral view) and by the shape of the aedeagus, especially the ventral process, which is more slender in lateral view and broader in ventral view in S. aculeatus   . For illustrations of the male sexual characters of S. aculeatus   see Figs 12-19 View Figs 12-23 in ASSING (2005a).

Distribution and bionomics:

The type locality is situated on the peninsula some 80 km to the northwest of Izmir ( Map 1 View Map 1 ). The specimens were found under stones in a calcareous grassland at an altitude of only 440 m ( Fig. 24 View Fig ).


Royal British Columbia Museum - Herbarium