Crenigomphus hartmanni (Förster, 1898)
Type locality: Transvaal, South Africa
Species closest to C. denticulatus by (a) S8-9 with foliations which are often bordered with black; (b) dorsum S10 flat; (c) branches of epiproct taper to very slender apices, appearing like nib of fountain pen. However, differs by (1) being more widespread, ranging from South Africa to NE DRC and Kenya; (2) larger size, Hw 27-31 mm; (3) S10 only slightly longer than S9; (4) cerci gradually curved in lateral and dorsal views, with wide space between them, rather than cerci being straight; (5) epiproct weakly rather than strongly upcurved, never projecting beyond cerci in lateral view. [Adapted from Dijkstra & Clausnitzer 2014]
Mostly streams, but also rivers, in open landscapes and open areas in forest. Often faster sections with bare banks, rocks and a gravelly and/or sandy bottom. From 200 to 1900 m above sea level, but mostly below 1400, although possibly down to sea level.
Appendages (dorsal view)
Appendages (lateral view)
Abdomen (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.
- Förster, F. (1898). Odonaten des Transvaalstaaten. II. Entomologische Nachrichten, 24, 166-172.
- Ris, F. (1921). The Odonata or Dragonflies of South Africa. Annals South African Museum, XVIII, 245-452. [PDF file]
- Pinhey, E.C.G. (1961). Dragonflies (Odonata) of Central Africa. Occasional Papers Rhodes-Livingstone Museum, 14, 1-97. [PDF file]
- Pinhey, E.C.G. (1966). Check-list of dragonflies (Odonata) from Malawi, with description of a new Teinobasis Kirby. Arnoldia, 2, 1-24. [PDF file]
- Fraser, F.C. (1949). Gomphidae from the Belgian Congo (order Odonata). Revue Zoologie Botanique Africaines, 42, 101-138. [PDF file]
- Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [PDF file]
Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2017-10-21].