Aethiothemis incongruens (Karsch, 1893)
Slender Flasher


  • scientific: Lokia incongruens

Type locality: Cameroon, no locality data available.


Male is similar to other “Lokia” by (a) larger size, Hw 24-35 mm; (b) labrum pale brown, like labium and anteclypeus; (c) Fw triangle of 2 cells, subtriangle of 3-4, but both sometimes just of 1; (d) subcostal cross-veins dark, like subcosta and median vein; (e) tibiae and femora quite uniformly brown to black; (f) venter of Abd deep orange to red with maturity. Differs by (1) thorax with distinct pattern of pale stripes on dark background; (2) Abd slender, with S3 triangular in dorsal view, its base almost 2x as wide as apex, and S4 more than 2x as long as wide; (3) hook of hamule long and strongly curved, like claw, dwarfing lobe.

Habitat description

Streams shaded by forest. Usually with coarse detritus and probably often submerged roots. From 0 to 1000 m above sea level.


confirmed: Botswana; Cameroon; Ghana; Liberia; Namibia; Nigeria; Sierra Leone; Togo; NOT confirmed: Equatorial Guinea; Republic of Guinea

© KD Dijkstra

Abdomen (dorsal view)

Abdominal segment 2 (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):

Female; Sierra Leone, Eastern Province, Gola Forest © Dijkstra, K.-D.B. & A. Dayeker

Male; Liberia, Grand Gedeh County, Putu Iron Ore Mining concession © Dijkstra, K.-D.B. & A. Dayeker

Female; Liberia, Grand Gedeh County, Putu Iron Ore Mining concession © Dijkstra, K.-D.B. & A. Dayeker


  • Karsch, F. (1893). Die Insecten der Berglandschaft Adeli im Hinterlande von Togo (Westafrika) nach dem von den Herren Hauptmann Eugen Kling imd Dr. Richard Büttner, gesammelten Materiale bearbeitet von Dr. F. Karsch, mit einem Vorworte von Dr. Richard Büttner. I Abtheilung Apterygola, Odonata, Orthoptera saltatoria. Lepidoptera. Rhopalocera. Berliner Entomologische Zeitschrift, 38, 1-266.

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. [2024-07-21].