Euphaea impar impar Selys .

Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, Miscellanea Zoologica Sumatrana 1, pp. 1-23 : 3

8. Euphaea impar impar Selys. -

Eastcoast Gvt.: Deli. Soekaranda ( Kruger). S. Lampoeng Res.: Waiteboe. slope of Mt. Tanggamoes . 500 m. Dec. 24. 1934. 4 ♂ ♂, Author leg. - From a series of 11 ♂ ♂ of E. impar inaequipar Selys. captured in W. Borneo. our Sumatran specimens differ only in that the black apical spot of the hind wings is a little more reduced in size. the inner border lying slightly beyond or at the middle of the distance between 'nodus and pterostigma, Hence. I cannot follow Ris in considering both races as distinct species.