Ictinogomphus regisalberti (Schouteden, 1934)
Type locality: Elisabethville [= Lubumbashi], DRC
Male is similar to I. ferox by (a) posterior hamule hollowed out internally, with dense hair tuft in hollow, and at least base or apex black; (b) apical halves S4-6 black, at most with pale dorsal streak; (c) foliations on S8 over 1/3 as deep as segment is high. However, differs by (1) mostly found on forested rivers from W Uganda, W Tanzania and N Zambia to Gabon; (2) larger size, Hw 46-51 mm; (3) labrum black with 2 large central pale spots, black band across clypeus, apices of vertex black; (4) posterior hamule black, often with pale apex; (5) cerci with sharp rather than blunt ventral angle. See I. fraseri for distinction from that species. [Adapted from Dijkstra & Clausnitzer 2014]
Mostly rivers, but also standing waters and possibly flowing channels in marshes, in open areas in forest. Often with emergent vegetation and a sandy and/or soft (like muddy) bottom. From 300 to 1300 m above sea level.
Appendages (dorsal view)
Appendages (lateral view)
Abdominal segment 2 (ventral 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.
- Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [PDF file]
- Pinhey, E.C.G. (1961). Dragonflies (Odonata) of Central Africa. Occasional Papers Rhodes-Livingstone Museum, 14, 1-97. [PDF file]
- Longfield, C. (1959). The Odonata of N. Angola. Part II. Publicacoes culturais Companhia Diamantes Angola, 45, 13-42. [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]
- 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, 28, 783-797. [PDF file]
Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2019-01-17].