Sympetrum gracile Oguma, 1915
An endemic of southern Japan, including the southern Honshu, Shikoku and Kyushu. The only blue representative of its genus.
A male
Shaded bushes on the bank of a pond, Kan-nabi, Tondabayashi-shi, Osaka-ken, Honshu, Japan. 3rd August 2002.
O. Kosterin