English Common Name

Okinawan Stag Beetle

Scientific name

Dorcus titanus okinawanus

Taxonomy

Order: Coleoptera, Family: Lucanidae

Size

Male 3 cm – 7 cm, Female 2.5 cm – 4 cm

Species Distribution

Okinawa, Iheya, Ie, Kouri, Minna, Sesoko, Hamahiga, Tsuken, Tokashiki, Zamami, Aka, Geruma, Kume Islands

Okinawan Common Name

Hasa-mah (general term for stag beetles)

This species is only found in Okinawa Island and islands located in the vicinity. It seems the original species migrated from continents when Okinawa Island was connected a long time ago. Okinawan Stag Beetles are found between April and December.

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Updated December 2017

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