Archibasis melanocyana (Selys, 1877) Selected references: Archibasis melanocyana (Selys, 1877);— Lieftinck 1949: 188 (first records from Sumatra: Lampung and Belitung). Specimens collected. M1b: 1 ♂, 1 ♀ (RER20 _ COE73–74; UMRI), 18 i 2020; M1d: 3 ♂♂ (RER20 _ COE69–71; RER), 15 i 2020; M1f: 1 ♂ (RER23 _ COE65; BRIN), 17 ii 2023; 1 ♂ (RER23 _ COE293; BRIN), 4 x 2023; M1h: 1 ♂ (RER20 _ COE75; RER), 19 i 2020; M1m: 2 ♂♂ (RER23 _ COE57–58; RER), 16 ii 2023; 2 ♂♂ (RER23 _ COE59– 60; BRIN), 16 ii 2023; 1 ♂, 1 ♀ (RER23 _ COE61–62; UMRI), tandem pair, 16 ii 2023; 1 ♂ (RER23 _ COE292; RER), 1 x 2023; M1n: 2 ♂♂ (RER23 _ COE63–64; RER), 16 ii 2023; M2a: 1 ♂ (RER20 _ COE72; BRIN), 16 i 2020; M4a: 1 ♂ (RER23 _ COE197; UMRI), 5 vi 2023; M4b: 1 ♂ (RER23 _ COE53; BRIN), 8 ii 2023; M4e: 1 ♂ (RER23 _ COE291; UMRI), 27 ix 2023; M5a: 3 ♂♂ (RER23 _ COE54–56; UMRI), 9 ii 2023; 1 ♂, 1 ♀ (RER23 _ COE198–199; RER), tandem pair, 17 vi 2023; 3 ♂♂ (RER23 _ COE200–202; BRIN), 17 vi 2023. Remarks. This is the first record for Riau Province. This species is common on streams in PSF and is also frequently found on canals and drains in PSF.

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 24-25, DOI: 10.11646/zootaxa.5732.1.1, http://zenodo.org/record/18019483