Hadrothemis vrijdaghi Schouteden, 1934
Type locality: Coquilhatville [= Mbandaka], DRC
Male is similar to H. camarensis by (a) frons at least partially dark metallic; (b) labrum all pale, sometimes dark brown or black; (c) labium all pale; (d) vertex without tubercles; (e) thorax and Abd dull brown to black, not rufous; (f) numerous cell-doublings in medial planate of Fw and often Hw; (g) Pt seldom over 4 mm long; (h) S2 under 4 mm broad. However, differs by (1) being restricted to the C Congo Basin; (2) mesepisterna largely blackish to brown, like sides of thorax; (3) wings all deep golden-yellow; (4) Fw triangle of 3 cells (rarely 2 or 4), subtriangle of 5-6 (occasionally varies 3-8). [Adapted from Dijkstra & Clausnitzer 2014]
Not known, but probably small pockets of often temporary water in tree holes (and similar small containers) shaded by forest. Probably often with coarse detritus. From 300 to 700 m above sea level.
Abdominal segment 2 (lateral view)
Map citation: Clausnitzer, V., K.-D.B. Dijkstra, R. Koch, J.-P. Boudot, W.R.T. Darwall, J. Kipping, B. Samraoui, M.J. Samways, J.P. Simaika & F. Suhling, 2012. Focus on African Freshwaters: hotspots of dragonfly diversity and conservation concern. Frontiers in Ecology and the Environment 10: 129-134.
- Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [PDF file]
- Fraser, F.C. (1953). New genera and species of Libellulines from the Belgian Congo. Revue Zoologie Botanique Africaines, 48, 242-256. [PDF file]
Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2021-03-08].