Orthetrum testaceum testaceum (Burmeister, 1839) Selected references: Libellula testacea Burmeister, 1839;— Burmeister 1839: 859 (original description from Java);— Selys 1889: 463 (first record from Sumatra: first records from Sumatra: North Sumatra (including Nias) and West Sumatra). Orthetrum testaceum (Burmeister, 1839);— Ris 1927: 40 (first record from Riau). Specimens collected. P4b: 1 ♂ (RER23 _ LIB210; RER), 31 v 2023; P5a: 1 ♂ (RER23 _ LIB211; BRIN), 21 vi 2023; P6e: 1 ♂ (RER23 _ LIB335; UMRI), 23 ix 2023. Remarks. Probably much more common in the Kampar Peninsula than the records above suggest, this species was seen in passing at muddy puddles on roads and at drains in acacia on a number of occasions.

Published as part of Dow, Rory A., Gesriantuti, Novia, Iqbal, Muhammad, Lupiyan-Ingdyah, Pungki, Periera, John F., Zulya, Shinta O. & Sanders, Bradford M., 2025, Odonata of the Kampar Peninsula: the first systematic survey of Odonata in Peat Swamp Forest in Sumatra, pp. 1-70 in Zootaxa 5732 (1) on pages 49-50, DOI: 10.11646/zootaxa.5732.1.1, http://zenodo.org/record/18019483