Prionus insularis is a species of barbel from the subfamily Prionin.
| Prionus insularis | ||||||||||||||||||||||||||
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| Prionus insularis Motschulsky , 1857 |
Content
Spread
It is distributed in the southern part of the Khabarovsk Territory , the Amur Region , the Sakhalin Region , in the Primorsky Territory and on the southern Kurile Islands ( Kunashir ), and is also found in Japan , the Korean peninsula and in northeast China . [one]
Description
Beetle length from 23 to 48 millimeters. Antennae 12-segmented; starting from the third segment in males and from the seventh in females, the antennae are piloid. Elytra wide, their tops with a thinly needle-shaped inner and rounded outer corners. [one]
Ecology
The flight of beetles lasts from July to April. Adult beetles colonize the roots of dried trees such as oak ( Quercus ), maple ( Acer ) and elm ( Ulmus ). Larvae develop under the bark and in the wood. [one]
Development
The life cycle lasts three years. The larvae pupate in the soil after the third wintering. [one]
Subspecies
In the form there are three subspecies:
- Prionus insularis insularis Motschulsky, 1857
- Prionus insularis tetanicus Pascoe, 1867
- Prionus insularis yakushimanus Ohbayashi, 1964
Notes
- β 1 2 3 4 P. Ler. 3 // Key to insects of the Far East of the USSR. Coleoptera, or beetles. - Vladivostok: Dal'nauka, 1996. - T. III. - p. 70. - 556 p. - ISBN 5-7442-0974-3 .