Apterocuris brinevi Mikhailov 2023

Apterocuris brinevi Mikhailov, 2023 Figs 1, 4 MATERIAL EXAMINED. Russia: Primorsky Krai, 50 km on NW from Plastun, upper reaches of the Dzhigitovka River, Kabany streamlet, 28. V 2015, 1♂, 4♀, leg. MS (FSCV). DESCRIPTION. Male (hitherto unknown). Similar to female but body shorter and stockier; body length 4 mm, width 2.3 mm. Dorsum shining; elytra with lacquer shine; head, pronotum and elytra blackish blue (Fig. 1). Elytra at base broader than pronotum, with obtuse basilateral angles, elongate, distinctly broadened before middle, humeral callus absent. Primary punctures dense, medium-sized, not deepened, form short scutellar row from 7–8 punctures, striae 1, 2 and 9 almost regular, 3 and 4 irregular and hardly traced because of doubled punctures; rest of punctures completely confused; stria 9 near lateral margin complete, reaching apex of elytra. Interspaces between traceable elytral striae subequal in width and apically tapering; flat, lacquer smooth, impunctate, but each bearing thin longitudinal wrinkle. Underside, legs and antennomere 1 black with metallic luster; tarsi and antennomeres 7–11 reddish brown. Aedeagus weakly widened from above to the middle, narrows to truncated and the apex is flattened; when viewed from the side, it is bent in the middle; the flagellum is visible, thin, tubular, slightly curved upward at the apex (Figs 2, 3). HABITAT. In Khabarovsky Krai this species was recorded from mountain forests, subalpine meadows, and alpine tundra (Mikhailov, 2023). In Primorsky Krai the imago were found on Aconitum sp. (Ranunculaceae) in mountain area. REMARKS. The previous records of Colaphellus alpicola (Warchałowski, 2004) (Sergeev, 2016, 2020) are incorrect and belong to Apterocuris brinevi. DISTRIBUTION. Russia: Khabarovsky Krai (Mikhailov, 2023), Primorsky Krai (first record).