17. Oncopsis subangulata (Sahlberg, 1871)

Figs. 45–46, 148–151

Description. Coloration typical, females similar to males or brown (Figs. 45–46).

Penis with ventral margin slightly concave in side view (Figs. 148-149). Lower appendage of dorsal connective with very long, wide base and two short, almost parallel branches of equal length. Notch between branches wide, angulate. Margins of branches finely serrated (Figs. 149–150). Style slightly expanded in apical third, with acute tip (Fig. 151).

Body length (including tegmina): ♂, 4.5–5.2 mm; ♀, 4.8–5.5 mm.

Formally belongs to O. flavicollis species group, but distinctly differs from all other species by shape of lower appendage of dorsal connective.

Host. Betula alba and B. pendula .

Distribution. Europe including European Russia, Eastern border of the range is obscure.