''Prosopocoilus inclinatus'', the Japanese stag beetle, is a

beetle Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...

of the Family Lucanidae found throughout

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

(Hokkaido, Honshu, Shikoku, Kyushu, Sado Island, Tsushima, Yaku Island) and the Korean peninsula.

Description

Japanese stag beetles are large, smooth, dark brown to red brown beetles, measuring 26 to 75 mm in length. Males are larger than the females and have mandibles which are enlarged and much longer than the female's. Prosopocoilus inclinatus

References

Lucaninae Prosopocoilus Insects of Japan Beetles of Asia Beetles described in 1857 {{Lucanidae-stub