Pseudagrion (B) glaucescens Selys, 1876
Type locality: Sierra Leone, no locality data available.
Male is similar to P. helenae by (a) S8-9 seldom with narrowly black apical border, often all blue; (b) penis with shallow apical notch and no lateral points; (c) cerci about half as long as S10, inner border with sharp angle; (d) cerci at most with small basal tooth; cerci seldom dwarfed by paraprocts, if so normally not notched; (e) paraprocts never with dorsal knob (lateral view). However, differs by (1) being more widespread; (2) larger size, Hw 21-24 mm; (3) face and mesepisternum (yellowish) green, rather than blue; (4) lower branch of cerci broad rather than concealed, and well-visible in lateral view. [Adapted from Dijkstra & Clausnitzer 2014; this diagnosis not yet verified by author]
Rivers in open landscapes. Often with emergent vegetation. From 0 to 1500 m above sea level, but mostly between 500 and 1400.
Appendages (dorsal view)
Appendages (lateral view)
Penis (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.
- de Sélys-Longchamps, E. (1876). Synopsis des Agrionines, 5me légion: Agrion (suite). Le grand genre Agrion. Bulletin Academie royale Belgique Serie 2, 490-531.
- Longfield, C. (1936). Studies on African Odonata, with synonymy and descriptions of new species and subspecies. Transactions Royal Entomological Society London, 85, 467-498. [PDF file]
- Pinhey, E.C.G. (1961). Dragonflies (Odonata) of Central Africa. Occasional Papers Rhodes-Livingstone Museum, 14, 1-97. [PDF file]
- Pinhey, E.C.G. (1966). Check-list of dragonflies (Odonata) from Malawi, with description of a new Teinobasis Kirby. Arnoldia, 2, 1-24. [PDF file]
- Pinhey, E.C.G. (1973). Notes on some African representatives of the genus Pseudagrion Selys, 1876, with descriptions of two new species (Zygoptera: Coenagrionidae). Odonatologica, 2, 317-327. [PDF file]
- Ris, F., and Schmidt, E. (1936). Die Pseudagrion-Arten des kontinentalen Afrika. (Insecta, Odonata). (posthumous, Schmidt based on Ris' notes - sp authorship Schmidt). Abhandlungen Senckenbergischen Naturforschenden Gesellschaft, 433, 1-68. [PDF file]
- Pinhey, E.C.G. (1967). Odonata Zygoptera. Exploration Hydrobiologique Bassin Lac Bangweolo Luapula, 14, 1-43. [PDF file]
- Fraser, F.C. (1955). Odonata collected by J. Hamon in French West Africa. Revue francaise Entomologie, 22, 237-243. [PDF file]
- Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [PDF file]
Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2020-08-12].