Apterocuris brinevi Mikhailov, 2023

Sergeev, M. E., 2024, Review of the leaf beetles genera Apterocuris Jacobson, 1901 and Clytra Laicharting, 1871 (Coleoptera: Chrysomelidae) from the Russian Far East, Far Eastern Entomologist 511, pp. 13-19 : 14

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).

Figures

Figs. 1–5. Imago Apterocuris spp.: 1-3 – Apterocuris brinevi, male: 1 – habitus, dorsal view, 2-3 – aedeagus, 4 – A. brinevi, female; 5 – Apterocuris sibirica, female. (Figs 4, 5 from Mikhailov, 2023).