Dinoptera minuta minuta, a nominotypical subspecies occuring in North-East Asia (Russia, North China, Japan, Korea), has been described from East Siberia as
Pachyta minuta by Friedrich August Gebler in 1832 [▽]. D. minuta larvae develop in decaying, recently dead, and wind-felled deciduous trees (Acer, Fraxinus, Juglans, etc.).
Larvae create longitudinal meandering galleries in bark and plug them with frass, leaving outwardly only a thin film of cork layer. Last instar larvae nibble oval opening on bark surface
and fall through it onto soil where create pupal cell (at a depth 3 - 6 cm) and pupate. Life-cycle two years. Adults, active from June to July, are diurnal and anthophilous [✧][❖].
|Body length:||♂♂ 5.0 - 7.5 mm / ♀♀ 6.5 - 9.0 mm|
|Life cycle:||2 years|
|Adults in:||June - July|
|Host plant:||polyphagous in deciduous trees|
|Distribution:||Russian (East Siberia, Far East), NE China, Japan, Korea|
The depicted male beetle (6.5 mm) was collected in alluvial forest at Kedrovaya (Кедровая) river bank
(N43°06′43″ E131°31′28″; 8 km SSE of Barabash, Khasansky district,
South of Primorsky krai, Far Eastern Federal District, Russia) on May 22-27, 2015.
Collected by Kirill V. Makarov and A.Zaytsev
Notice sur les Coléoptères qui se trouvent dans le district des mines de Nertschinsk, dans la Sibérie orientale, avec la description de quelques espèces nouvelles.
Nouveaux Mémoires de la Société Impériale des Naturalistes de Moscou (8) 2: 25-78, 1832.
Cerambycidae of Northern Asia, Volume 1 - Prioninae, Disteniinae, Lepturinae, Aseminae.
Amerind Publishing, New Delhi: 304pp [pages 230-234], 1988.
Longicorn beetles (Coleoptera, Cerambycoidea) of Russia and adjacent countries. Part 1.
Higher School Consulting, Moscow, 550pp [pages 155-156], 2014.