Mesosa hirsuta has been described from Kobé environs (Japan) by Henry Walter Bates in 1884 [❖]. Its continental subspecies M. hirsuta continentalis,
occuring in Russian Far East, Korea, and North China, was described from Seoul environs (Korea) by Masao Hayashi in 1965 [✧]. Larvae of M. hirsuta continentalis
feed subcortically in branches and trunks of dying/freshly felled or uprooted deciduous trees, creating in sapwood impressed galleries filled with fine frass.
Last instar larvae, after the first overwintering, enter the sapwood where bore pupal cells close to the wood surface. Pupation and hatching of beetles in August-September,
young adult beetles leave the host trees and overwinter hidden in the forest litter. They mate and reproduce after maturation feeding on the host trees during the next late spring and summer.
Life cycle 2 years [▿].
| Body length: | 8 - 17 mm |
| Life cycle: | 2 years |
| Adults in: | May - July |
| Host plant: | polyphagous in deciduous trees (Prunus, Fraxinus, Carpinus, Salix, Quercus, Ulmus etc.) |
| Distribution: | Russian Far East, Korea, China |
The depicted female beetle was collected was collected in Vodopadnoe lake environs
(N44°27′ E146°06′; Kunashir/Кунаши́р island, Kuril Islands, Yuzhno-Kurilsky district, Sakhalin region, Russia)
on August 17, 2013.
Collected by L.Sundukova
[❖]
Bates H.W.:
Longicorn beetles of Japan. Additions, chiefly from the later collections of Mr. George Lewis; and notes on the synonymy, distribution,
and habits on the previously known species.
The Journal of the Linnean Society of London. Zoology 18: 205-262, 1884.
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[✧]
Hayashi M.:
The Cerambycidae of Japan (Col.) (7).
The Entomological Review of Japan 18 (1): 26-36, 1965.
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[▿]
Cherepanov A.I.:
Cerambycidae of Northern Asia, Volume 3 - Laminae Part I.
Amerind Publishing, New Delhi: 300pp [pages 221-227], 1990.
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