Orthetrum abbotti Calvert, 1892
Little Skimmer

Type locality: Kilimanjaro, Tanzania

Diagnosis

Male is similar to O. hintzi and O. kafwi by (a) generally found in more open habitats; (b) size,with Hw 22-29 mm; (c) frons at most with dorsal dark markings running down onto shields; (d) 1 row in radial planate, sum of cell-doublings 0-10 [0-14]; (e) Pt somewhat swollen, usually 12.5% of Hw length or more; (f) usually all (at least proximal) subcostal Ax pale; (g) Abd usually shorter than Hw (if longer, S4-6 with transverse bands; (h) space between hook and lobe of hamule usually narrow or closed; (i) metepimeral carina not marked with black line; (j) at least S4-7 with pale longitudinal streaks, at most S9-10 all dark, although marking on S8 can be tiny. Cerci always at least partially dark. However, differs by (1) dorsum of frons often with dark lines along peaks and grooves; (2) thorax with only thin dark lines, still largely pale when it pruinoses; (3) dorsal carina of Abd black; (4) hook of hamule long and narrow, rather than short and wide, and curved over lobe. [Adapted from Dijkstra & Clausnitzer 2014; this diagnosis not yet verified by author]

Habitat description

Mostly seeps and springs (often temporary), but also headwaters, streams and standing waters, in open landscapes and sometimes open areas in forest. Usually with emergent vegetation and often a soft (like muddy) bottom. From 0 to 2200 m above sea level, but mostly below 1900.

Distribution

confirmed: Angola; Benin; Botswana; Burkina Faso; Côte d'Ivoire; Cameroon; Congo-Brazzaville; Democratic Republic of the Congo; Ethiopia; Gabon; Ghana; Guinee-Bissau; Kenya; Liberia; Malawi; Mali; Mozambique; Namibia; Nigeria; Republic of Guinea; Republic of South Africa; Rwanda; Senegal; Sierra Leone; Somalia; Sudan; Swaziland; Tanzania; Togo; Uganda; Zambia; Zimbabwe; NOT confirmed: Lesotho


Male © Wil Leurs


Abdominal segment 2 (lateral view)

Head (front)

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; Zimbabwe, Manicaland, Mt Selinda-Chipinge road © Dijkstra, K.-D.B.


Adult, female; Zimbabwe, Manicaland, Vumba Mts © Dijkstra, K.-D.B.


Adult, male; Zimbabwe, Manicaland, Vumba Mts © Dijkstra, K.-D.B.


Female; Democratic Republic of Congo, Katanga, © Dijkstra, K.-D.B.


Male; Democratic Republic of Congo, Katanga, © Dijkstra, K.-D.B.


Male; Democratic Republic of Congo, Katanga, © Dijkstra, K.-D.B.


Male; Liberia, Nimba County, Mt Tokadeh © Dijkstra, K.-D.B.


Male; Liberia, Nimba County, Yekepa © Dijkstra, K.-D.B.


Male; Tanzania, Kigoma Region, Lower Malagarasi Basin © Dijkstra, K.-D.B.


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


Adult, female; Zimbabwe, Manicaland, Chimanimani National Park © Dijkstra, K.-D.B.

References

  • Calvert, P.P. (1892). Preliminary notes on some African Odonata. Transactions American Entomological Society, 19, 161-164. [PDF file]
  • Ris, F. (1921). The Odonata or Dragonflies of South Africa. Annals South African Museum, XVIII, 245-452. [PDF file]
  • Longfield, C. (1936). Studies on African Odonata, with synonymy and descriptions of new species and subspecies. Transactions Royal Entomological Society London, 85, 467-498. [PDF file]
  • 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]
  • Förster, F. (1906). Die Libellulidengattungen von Afrika und Madagaskar. Jahresbericht Mannheimer Vereins Naturkunde, 72, 1-67.
  • Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [PDF file]
  • Pinhey, E.C.G. (1966). Notes on African Odonata, particularly type material. Revue Zoologie Botanique Africaines, 73, 283-308. [PDF file]
  • Lieftinck, M.A. (1969). Odonates Anisoptères - Odonata Anisoptera. Explor. hydrob. Lac Bangweolo and Luapula, 14, 1-64. [PDF file]
  • Schmidt, E. (1951). Libellen aus Portugiesisch Guinea, mit Bemerkungen über andere aethiopische Odonaten. Arquivos Museu Bocage, 20, 125-200. [PDF file]
  • Longfield, C. (1955). The Odonata of N. Angola. Part I. Publicacoes culturais Companhia Diamantes Angola, 27, 11-63. [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]
  • 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]
  • Sjöstedt, Y. (1909). Wissenschaftliche Ergebnisse der schwedischen zoologischen Expedition nach dem Kilimandjaro, dem Meru und den umgebenden Massaisteppen Deutsch-Ostafrikas 1905-1906 unter Leitung von Prof. Dr. Yngve Sjöstedt. 14. Pseudoneuroptera. Odonata, 14, 1-52.

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2018-11-21].