Paragomphus nigroviridis Cammaerts, 1969
Black-and-green Hooktail

Type locality: Uele, Bambesa, DRC

Diagnosis

Male is similar to P. viridor and P. alluaudi by (a) anterior hamule hook-shaped;(b) cerci slender, at least 1.5x as long as S10; apices of cerci diverge, are thick, truncate, and often coarsely toothed; (c) epiproct longer, almost as long as S10 or longer, not so strongly curved upwards; does not reach midpoint of cerci, with distinct median knobs. However, differs by (1) ranging from C DRC to W Africa; (2) occiput black rather than green; (3) thorax largely black with greenish stripes and spots; (4) antehumeral stripe reduced to dorsal spot which is separated from postdorsal stripe, like 7 with dot (7.); (5) apices of cerci tapering, distally with distinct pointed tooth. [Adapted from Dijkstra & Clausnitzer 2014; this diagnosis not yet verified by author]

Habitat description

Streams shaded by forest. Probably often with a sandy bottom. From 200 to 700 m above sea level.

Distribution

confirmed: Angola; Democratic Republic of the Congo; Liberia; NOT confirmed: Benin; Côte d'Ivoire; Cameroon; Ghana; Togo

Appendages (dorsal view)

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.


Barcode specimen(s):


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


Female; Liberia, Gbarpolu County, Gola National Forest © Dijkstra, K.-D.B. & A. Dayeker

Reference

  • Cammaerts, R. (1969). Paragomphus abnormis (Karsch, 1890) et deux especes precedemment confondues avec ce taxon (Odonata gomphidae). Bulletin Annales Societe royale Entomologie Belgique, 105, 234-248.

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2019-08-19].