Diastatomma selysi Schouteden, 1934
Common Hoetail

Synonyms:

  • scientific: D. aberrans Schouteden, 1934; Gomphidia aberrans; D. ruwenzoricum Pinhey, 1961

Type locality: Bambesa, DRC

Diagnosis

Male is similar to widely co-occurring D. multilineatum by (a) pale stripes on thorax narrow, on black background, with antehumeral and metepisternal stripes complete; (b) all veins including costa dark. However, differs by (1) black on fronto-clypeal suture usually narrow and seldom fused with black on lower postclypeus; (2) posterior hamule weakly incised, its border rounded anteriorly; (3) apical pale ring on S2 complete, but dorsal black stripe usually interupts basal pale ring on S3; (4) inner branch of cercus slanted backwards, angle with cercus axis about 60º, this branch spoon-like expanded and rounded at end. [Adapted from Dijkstra & Clausnitzer 2014]

Habitat description

Mostly headwaters, but also larger streams, shaded by forest. Often with a gravelly and/or sandy bottom and probably coarse detritus. From 200 to 1600 m above sea level.

Distribution

confirmed: Angola; Central African Republic; Congo-Brazzaville; Democratic Republic of the Congo; Gabon; Uganda; Zambia


Male © KD Dijkstra


Appendages (dorsal view)

Thorax (lateral view)

Posterior hamule (lateral view)

Tubercle (frontal view)

Tubercle (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.


Barcode specimen(s):


Male; Gabon, Haut-Ogooué, "Africa No1" (= Station de radiodiffusion de Moyabi) © Dijkstra, K.-D.B. & Cédric Vanappelghem


Female; Gabon, Haut-Ogooué, "Africa No1" (= Station de radiodiffusion de Moyabi) © Dijkstra, K.-D.B. & Cédric Vanappelghem


Male; Democratic Republic of Congo, Province Orientale,

References

  • Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [PDF file]
  • Pinhey, E.C.G. (1962). New or little-known dragonflies (Odonata) of Central and Southern Africa. Occasional Papers National Museum Southern Rhodesia, 26, 892-911. [PDF file]
  • Fraser, F.C. (1949). Gomphidae from the Belgian Congo (order Odonata). Revue Zoologie Botanique Africaines, 42, 101-138. [PDF file]
  • Pinhey, E.C.G. (1962). Some records of Odonata collected in tropical Africa. Journal Entomological Society Southern Africa, 25, 20-50. [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/ [2018-07-18].