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 * 18. Rhinocypha perforata (Perch.) . - I have examined a single ♂ In the Hamburg Museum. collected in Sumatra by B. Jachan.