Pseudagrion (B) glaucum (Sjöstedt, 1900)
Slender Sprite

Synonyms:

  • scientific: P. basicornu Schmidt in Ris, 1936
  • vernacular: Slim S.

Type locality: Bonge, Liberia

Diagnosis

Male is similar to other Pseudagrion B species by (a) apex of S10 bearing black denticles. However, P. glaucum is entirely set apart from the rest by (1) less widespread, and being restricted to forests from DRC to W Africa; (2) cerci with notched apex, much shorter and smaller than paraprocts (lateral view); (3) cerci with long internal tooth near base (dorsal view), rather than only often having a small basal tooth. [Adapted from Dijkstra & Clausnitzer 2014; this diagnosis not yet verified by author]

Habitat description

Standing waters, rivers and streams in open areas in forest. Often with coarse detritus, a sandy and/or soft (like muddy) bottom, and probably emergent vegetation and/or overhanging branches. From 0 to 700 m above sea level.

Distribution

confirmed: Benin; Côte d'Ivoire; Cameroon; Congo-Brazzaville; Democratic Republic of the Congo; Equatorial Guinea; Gabon; Ghana; Guinee-Bissau; Liberia; Nigeria; Sierra Leone; NOT confirmed: Central African Republic; Republic of Guinea; Togo


Male © Jens Kipping

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.


Barcode specimen(s):


Female; Liberia, Nimba County, © Dijkstra, K.-D.B.

References

  • Sjöstedt, Y. (1900). Odonaten aus Kamerun, West -Afrika.Beltrage Zur Kenntnis der insektenfauna von Kamerun.Binhang Kongliga Svenka VetenskapsAkademiens Handlingar, 25, 1-62.
  • 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]
  • Schmidt, E. (1951). Libellen aus Portugiesisch Guinea, mit Bemerkungen über andere aethiopische Odonaten. Arquivos Museu Bocage, 20, 125-200. [PDF file]

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2019-08-25].