Arhopaloscelis nipponensis, a species occuring in Russian Far East and Japan, has been described from Sapporo environs (Hokkaido, Japan) as Rhopaloscelis nipponensis by Maurice Pic in 1932 [▽].

Body length:	4.5 - 8 mm
Life cycle:	1 - 2 years [?]
Adults in:	June - August
Host plant:	polyphagous species
Distribution:	Russian Far East (Kunashir - Kuril Islands), Japan

The depicted male beetle (6.5 mm) was collected in abandoned settlement Zastava Dokuchayeva (Застава Докучаева) environs (N44°30′34″ E146°09′29″; ca 45 m a.s.l., Kunashir/Кунаши́р island, Kuril Islands, Yuzhno-Kurilsky district, Sakhalin region, Russia) on August 3, 2013.

Collected by Kirill V. Makarov

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[▽]
Pic M.:
Diagnoses préliminaires.
Mélanges Exotico-Entomologiques 59: 1-9, 1932. [download ]