A Synopsis of the Odonata (Dragonflies) of Sumatra Author Lieftinck, M. A. text Miscellanea Zoologica Sumatrana 1935 1 1 23 journal article 10.5281/zenodo.3251875 0e6ccf7f-8e43-40c1-99a4-616658ec790b 3251875 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.