Elattoneura vrijdaghi Fraser, 1954
Ochre Threadtail

Type locality: Bambesa, DRC

Diagnosis

Male is similar to E. tsiamae by (a) head, thorax and sometimes Abd tip with reddish markings with maturity; (b) eyes red in life; (c) anal vein terminates level to distal border of quadrilateral; (d) legs dull yellow to reddish with dark blotches; (f) ventral process of cerci triangular, anterior border at acute angle to posterior border. However, differs by (1) antehumeral stripes wider, rather than narrower than dark area between them; (2) apical process of paraprocts rounded, rather than pointed. However, note that the holotype of E. vrijdaghi has paraprocts and antehumerals more like as illustrated for E. tsiamae by Dijkstra & Clausnitzer (2014) and thus further study of the complex is needed (Dijkstra et al. 2015). [Adapted from Dijkstra & Clausnitzer 2014 and Dijkstra, Kipping & Mézière 2015]

Habitat description

Mostly streams, but also rivers, in open areas in forest. Probably often with blackwater, mostly with a sandy bottom. From 200 to 700 m above sea level.

Distribution

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


Male © Kris Pannecoucke


Appendages (lateral view)

Thorax (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; Democratic Republic of Congo, Province Orientale, © Dijkstra, K.-D.B.

Reference

  • Fraser, F.C. (1954). New and rare species of Zygoptera from the Belgian Congo. Revue Zoologie Botanique Africaines, 50, 269-276. [PDF file]

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2018-10-19].