Aciagrion brosseti Legrand, 1982
Yellow-winged Slim

Type locality: Makokou, Gabon

Diagnosis

Male is similar to A. steeleae by (a) smaller size, Hw 14-18 mm; (b) dorsum of head between eyes (almost) continuously black; (c) thorax with complete black middorsal and often humeral stripes; (d) cerci only about half as long as S10 but distinctly longer than paraprocts, with broad or rounded apex; (e) paraprocts with  basal tooth directed straight upwards. However, differs by (1) ranging from C DRC to Gabon; (2) Pt blackish, rather than pale brown; (3) wings often yellowish, rather than clear; (4) S7 with blue subapical ring, rather than being dorsally evenly black; (5) S10 black rather than blue, and often with blue dorsal spot; (6) ventral process of cerci short, rather than slender. [Adapted from Dijkstra & Clausnitzer 2014]

Habitat description

Standing waters in open areas in forest. Usually with emergent vegetation. From 300 to 600 m above sea level.

Distribution

confirmed: Democratic Republic of the Congo; Gabon


© Jens Kipping


Male & female © Jens Kipping


Appendages (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.


Reference

  • Legrand, J. (1982). Deux nouveaux Aciagrion du Gabon (Odonatata, Zygoptera, Coenagrionidae) Revue francaise Entomologie Nouvelle Serie 4, 161-164. [PDF file]

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2020-07-07].