Acisoma trifidum Kirby, 1889
Pied Pintail
Synonyms:
- scientific: A. trifida
- vernacular: Ivory Pintail
Type locality: Congo, no locality data available.
Diagnosis
Male is set apart from other Acisoma species by (1) ranging from N Zambia and Uganda to W Africa; (2) labrum largely black rather than pale; (3) S3-10 gradually narrowing rather than strongly swollen; (4) pale markings on Abd solid and clean-cut, extend to S6, dorsal carina S4-5 (largely) unmarked with black. [Adapted from Dijkstra & Clausnitzer 2014]
Habitat description
Standing and probably often temporary waters in open areas in forest. Usually with emergent and often aquatic vegetation, and a soft (like muddy) bottom. From 0 to 1700 m above sea level, but mostly below 1200.
Distribution
Male © Jens Kipping
 Abdomen (dorsal view) |
 Abdominal segment 2 (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.
Barcode specimen(s):
Adult, male; Angola, Uige Province, new campus site and environs © Clausnitzer, V. & Dijkstra, K.-D.B.
Male; Liberia, Nimba County, Mt Tokadeh © Dijkstra, K.-D.B.
Male; Democratic Republic of Congo, Province Orientale, © 67292
References
- Kirby, W.F. (1889.) A revision of the subfamily Libellulinae, with descriptions of new genera and species. Transactions Zoological Society London, 12, 249-348.
- 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]
- Pinhey, E.C.G. (1961). Dragonflies (Odonata) of Central Africa. Occasional Papers Rhodes-Livingstone Museum, 14, 1-97. [PDF file]
- Ris, F. (1931). Odonata aus Süd-Angola. Revue Suisse Zoologie, 38, 97-112. [PDF file]
- Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [PDF file]
- Pinhey, E.C.G. (1971). Odonata collected in Republique Centre-Africaine by R. Pujol. Arnoldia, 5, 1-16. [PDF file]
- Schmidt, E. (1951). Libellen aus Portugiesisch Guinea, mit Bemerkungen über andere aethiopische Odonaten. Arquivos Museu Bocage, 20, 125-200. [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/ [2024-10-10].
