Nivellia extensa, an East-Palaearctic forest boreomontanne species extending its range as far as Finland, has been described from Altai Mts. (Siberia, Russia) as Leptura extensa
by Friedrich August Gebler in 1841 [❖]. N. extensa larvae develop in trunks of dead coniferous trees, especialy in Siberian fir (Abies sibirica).
Adults, active from June to August (peak in July), are diurnal and can be found on host trees and occassionaly on flowers [✮][✳].
| Body length: | ♂♂ 10.5 - 13.5 mm / ♀♀ 12 - 17 mm |
| Life cycle: | 2 years |
| Adults in: | June - August |
| Host plant: | oligophagous in coniferous trees (Abies, Larix, Picea) |
| Distribution: | Finland, Russia, Japan, Korea, North China, Mongolia |
The depicted mounted female beetle was collected in Mondy (Монды) settlement (1600 m a.s.l., Sayan Mountains, Tunkinsky district, Republic of Buryatia,
Far Eastern federal district, Russia) on June 25, 2005.
[❖]
Gebler F.A.:
Notæ et addidamenta ad catalogum Coleopterorum Sibiriæ occidentalis et confinis
Tatariæ operis: (C. F. von Ledebour's Reise in das Altaigebirge und die soongarische Kirgisensteppe, Zweyter Theil. Berlin. 1830.). Fasciculus secundus.
Bulletin de la Société Impériale des Naturalistes de Moscou 14 (4): 577-625, 1841.
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[✮]
Cherepanov A.I.:
Cerambycidae of Northern Asia, Volume 1 - Prioninae, Disteniinae, Lepturinae, Aseminae.
Amerind Publishing, New Delhi: 304pp [pages 338-344], 1988.
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[✳]
Danilevsky M.L.:
Longicorn beetles (Coleoptera, Cerambycoidea) of Russia and adjacent countries. Part 1.
Higher School Consulting, Moscow, 550pp [pages 226-227], 2014.
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