Notogomphus dendrohyrax (Förster, 1906)
Dark Longleg

Type locality: Usambara Mts, Tanzania

Diagnosis

Male is similar to N. bosumbuli and N. leroyi by (a) size, Hw 28-35 mm; (b) labrum black with large paired basal pale spots; (c) at least postclypeus and often labrum with dark markings, often largely dark; (d) lower border of antefrons dark like postclypeus; (e) occiput black, at most with central pale spot; (f) thorax with broad, (nearly) complete inter- and metapleural stripes; (g) postdorsal and antehumeral stripes well-defined, separate from each other and pale area of middorsal carina; (h) costa often dark. However, differs by (1) ranging from E Tanzania to Zimbabwe; (2) anterior border of posterior hamule strongly bent before hook, rather than being rather straight; (3) cerci parallel rather than convergent, with ventral tooth directed inwards, visible in dorsal view; (4) branches of epiproct more incurved rather than diverging strongly. [Adapted from Dijkstra & Clausnitzer 2014]

Habitat description

Streams shaded by forest, but sometimes in clearings. Often faster sections with coarse detritus and a sandy, soft (like muddy) and/or probably gravelly bottom. Inferred to occur from 300 to 2100 m above sea level.

Distribution

Appendages (dorsal view)	Appendages (lateral view)
Head (front)	Thorax (lateral view)
Thorax (dorsal view)	Occiput (dorsal view)
Posterior hamule (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.

References

• Förster, F. (1906). Forschungsreise durch Sudschoa, Galla und die Somalildnder von Carlo Freiherr von Erlanger. Liebellen. Jahrbuecher Nassauischen Vereins Naturkunde, 59, 301-344.
• 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]

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2024-04-18].