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 175. Gynacantha bayadera Selys . - Tapanoeli Res.: Sibolga ( Ris ). Westcoast Res.: Pajokoemboeh. Kloof van Harau, 500 m ( Ris ); Fort de Kock. 1 ♀. August. 1924. Jacobson leg. Benkoelen Res. : Lake Ranau distr. ( Schmidt ) and Bandingagoeng . 1 ♂ , Nov. 1. 1929 . van Steenis leg . S. Lampoeng Res.: Mt. Tanggamoes. Gisting . 500 m . 1 ♀ Nov. 26. 1933 . Toxopeus leg .. and 1 ♂ . Dec. 27. 1934 , Author leg .