Libyogomphus tenaculatus Fraser, 1926
Large Horntail

Synonyms:

  • scientific: Tragogomphus tenaculatus

Type locality: Cameroon, no locality data available.

Diagnosis

Male differs from other Libyogomphus species by combination of (1) great size, Hw 33-35 mm; (2) thorax with 4 rather than 3 green stripes on each side, only antehumeral stripes reduced, postdorsal stripes (almost) separate from (rather than fused to) collar; (3) dorsum of S10 humped rather than flat. [Adapted from Dijkstra & Clausnitzer 2014]

Habitat description

Mostly streams, but also headwaters, shaded by forest. Often with coarse detritus and a gravelly and/or sandy bottom. From 0 to 1200 m above sea level.

Distribution

confirmed: Angola; Cameroon; Congo-Brazzaville; Democratic Republic of the Congo; Gabon; Zambia


Male © C?®dric Vanappelghem


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):


Adult, male; Gabon, Haut-Ogoué, route Moanda-Francevile, concession Rougier, 2ème Barière, 2ème pont © Mézière, Nicolas, ANDRE GUENTHER,JENS KIPPING, HANNES KRAHNSTOEVER


Male; Gabon, Haut-Ogoué, piste à droite avant africa n°1 (direction franceville) © Mézière, Nicolas


Female; Democratic Republic of Congo, Province Orientale, Lower Lomami © Dijkstra, K.-D.B.


Male; Gabon, Haut-Ogooué, "Africa No1" (= Station de radiodiffusion de Moyabi) © Dijkstra, K.-D.B. & Cédric Vanappelghem


Male; Democratic Republic of Congo, Province Orientale, Lower Lomami

References

  • Fraser, F.C. (1926). Two new dragonflies (Order Odonata). Transactions Entomological Society London, 74, 355-359. [PDF file]
  • D' Andrea, M., and Carfi, S. (1997). Nuove raccolte di odonati del Camerun con note su Agriocnemis maclachlani Selys, 1877 edescrizione di Agriocnemis dissimilis sp. nov. e Trithemis osvaldae sp. nov. Atti Societa italiana Scienze naturali, 136, 157-190. [PDF file]

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2019-11-12].