Exocentrus guttulatus, an endemic species to Japan, has been described by Henry Walter Bates in 1873 [✧]. Its continental subspecies (occuring in Russian Far East and North Korea), Exocentrus guttulatus ussuricus, has been described from Primorsky Krai as Exocentrus ussuricus by Alexei Ignatevich Tsherepanov in 1973 [❖]

Body length:	5 - 8 mm
Life cycle:	1 - 2 years
Adults in:	June - July
Host plant:	polyphagous on deciduous trees
Distribution:	Russian Far East, North Korea

The depicted male beetle was collected in Gerasimov creek (Герасимов ключ) valley close to Lazo (Лазо́) village (Lazovsky district, Primorsky Krai, Far Eastern Federal District, Russia) on July 11, 2010.

Collected by Maxim E. Smirnov

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[✧]
Bates H.W.:
On the Longicorn Coleoptera of Japan.
The Annals and Magazine of Natural History, London (4) 12 (71): 380-390, 1873. [download ]

[❖]
Tsherepanov A.I.:
Novye vidy zhukov-drovosekov roda Exocentrus (Coleoptera, Cerambycidae).
Novye i maloizvestnye vidy fauny Sibiri 7: 138–139, 1973.

Miroshnikov A.I.:
Little known species of longicorn beetles (Coleoptera: Cerambycidae) from the Russian Far East / Малоизвестные виды жуков-дровосеков (Coleoptera: Cerambycidae) Дальнего Востока России.
Proceedings of the Russian Entomological Society, St. Petersburg 77: 226–234, 2006. [download ]