Elattoneura tsiamae Aguesse, 1966
Rusty Threadtail

Type locality: Tsiama Forest, Congo

Diagnosis

Male is similar to E. vrijdaghi 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 narrower, rather than wider than dark area between them; (2) apical process of paraprocts pointed, rather than rounded. 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 300 to 500 m above sea level.

Distribution

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


Male © Jens Kipping


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):


Adult, male; Gabon, Haut-Ogoué, Plateau Batéké - vallée de la Léconi © Mézière, Nicolas, JENS KIPPING, HANNES KRAHNSTOEVER


Male; Democratic Republic of Congo, Province Orientale, Lower Aruwimi © Dijkstra, K.-D.B.

Reference

  • Aguesse, P. (1966). Contribution à la faune de Congo (Brazzaville) Mission A. Villiers et A. Descarpentries XXI. Odonates. Bulletin de l'Institut fondamental d'Afrique noire (A), 28, 783-797. [PDF file]

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2017-08-22].