Semanotus bifasciatus (Motschulsky, 1875)


Semanotus bifasciatus
[Photo © D.Navrátil & 8K postprocessing M.Hoskovec]

Semanotus bifasciatus, a species occuring in North-East Asia (Russian Far East, North China, Japan, North Korea), has been described from North China as Hylotrupes bifasciatus by Victor Motschulsky in 1875 [▽]. Species inhabits coniferous forests and in Russia is ecologically associated with junipers (Juniperus), but in Japan, Korea and China it also attacks Chamaecyparius, Thuja, and Thujopsis. Adults, active from June through August, can be found on trunks of windfallen or standing dying trees. S. bifasciatus larvae develop under bark of trunks and thick branches of the host trees. Pupation in the pupal cell in sapwood (in depth 2 cm and more, exit/enter hole plugged by frass), life cycle two years [✧].

Body length:8 - 14 mm
Life cycle:2 years
Adults in:June - August
Host plant:Juniperus, Chamaecyparius, Thuja, Thujopsis
Distribution:Russia, China, Japan, North Korea

The depicted beetles were collected in Bunadaira environs (Hinoemata village, Fukushima prefecture, Tōhoku region, Honshu, Japan) on June 8, 2018.

Collected by Takao Arai

Motschulsky V.I.:
Énumération des nouvelles espèces de Coléoptères rapportés de ses voyages, par feu Victor Motschoulsky.
Bulletin de la Société Impériale des Naturalistes de Moscou 49 (2): 139-155, 1875. [download pdf icon]

Cherepanov A.I.:
Cerambycidae of Northern Asia, Volume 2 - Cerambycinae Part I.
Amerind Publishing, New Delhi: 304pp [pages 199-203], 1988. [download pdf icon]

SubfamiliaCerambycinae Latreille, 1802
TribusCallidiini Mulsant, 1839
GenusSemanotus Mulsant, 1839
SpeciesSemanotus bifasciatus (Motschulsky, 1875)