Umma longistigma (Selys, 1869)
Bare-bellied Sparklewing

Type locality: Old Calabar, Nigeria

Diagnosis

Male of this species and U. gumma (see for their separation) is similar to U. mesostigma (and its suspected synonym U. saphirina) by (a) anterior face of basal segment of antenna at least partly dark; (b) Pt well-developed, large and somewhat swollen, 1.5-3 mm, acutely angled due to oblique proximal border, brown to black and at most slightly metallic; (c) cells between Pt and R2 at most as deep as long; (d) venation less dense, e.g. Fw quadrilateral with 5-8 cross-veins; (e) legs and poststernum glossy dark brown to black. However both differ by (1) mandibular bases largely pale, instead of dark; (2) poststernum with sparse short whitish hairs, rather than dense long dark hairs; (3) cerci without bristle clump; (4) paraprocts long and slender, about 3/4 as long as cerci. [Adapted from Dijkstra & Clausnitzer 2014]

Habitat description

Streams shaded by forest, but sometimes in clearings. Mostly with a sandy bottom, but also often with rocks and a gravelly bottom, and probably submerged roots and/or coarse detritus. From 0 to 1000 m above sea level.

Distribution

confirmed: Angola; Cameroon; Central African Republic; Congo-Brazzaville; Democratic Republic of the Congo; Equatorial Guinea; Gabon; Nigeria


Male © Nicolas Meziere

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,


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


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


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


Adult, male; Gabon, NGOUNIE, Parc National des monts Birougou © Mézière, Nicolas


Adult, male; Angola, Cuanza Norte Province, Quitexe-Camabatela road © Dijkstra, K.-D.B.

References

  • de Sélys-Longchamps, E. (1869). Secondes additions au synopsis des calopterygines. Bulletin Academie royale Belgique Serie, 2, 645-680.
  • Pinhey, E.C.G. (1971). Odonata of Fernando Po Island and of neighbouring Cameroons Territory. Journal Entomological Society Southern Africa, 34, 215-229. [PDF file]
  • Karsch, F. (1899). Odonaten von Johann-Alrecht-Höhe (Nord- Kamerun), gesammelt von Herrn Leopold Conradt. Entomologische Nachrichten, 25, 161-176. [PDF file]
  • Sjöstedt, Y. (1900). Odonaten aus Kamerun, West -Afrika. Beltrage Zur Kenntnis der insektenfauna von Kamerun. Binhang Kongliga Svenka VetenskapsAkademiens Handlingar, 25, 1-62.
  • Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [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/ [2018-12-19].