Pinheyschna rileyi (Calvert, 1892)
Bullseye Hawker

Synonyms:

• scientific: Aeshna rileyi
• vernacular: Bull's Eye H.

Type locality: Kilimanjaro, Tanzania

Diagnosis

Male is similar to P. subpupillata by (a) stem of black mark on frons round and surrounded by pale area like bull’s-eye; (b) Pt 3.5-4 mm, over 8% of Hw length; (c) membranule dark, basal half distinctly white; (d) anal triangle of 3 cells, only rarely 2; (e) genital lobe elongate, apex rounded or truncate. However, differs by (1) ranging from Zimbabwe to Kenya and Uganda; (2) relatively larger size, Hw 40-46 mm; (3) thorax between pale lateral stripes all dark, rather than with pale marking near Fw base; (4) costa brown rather than yellow, and venation quite uniformly dark; (5) genital lobe rather straight, rather than distinctly curved. [Adapted from Dijkstra & Clausnitzer 2014]

Habitat description

Streams in open areas in forest, but sometimes also shaded by gallery forest or in open landscapes. Especially faster sections, usually with rocks and/or dead trunks or branches, and probably overhanging branches. From 700 to 2200 m above sea level, but possibly down to 100.

Distribution

Appendages (dorsal view)	Appendages (lateral view)
Abdominal segment 2 (lateral view)	Frons (dorsal 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):

References

• Calvert, P.P. (1892). Preliminary notes on some African Odonata. Transactions American Entomological Society, 19, 161-164. [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]
• Barnard, K.H. (1937). Notes on dragon-flies (Odonata) of the S. W. Cape with descriptions of the nymphs and of new species. Annals South African Museum, 32, 169-260. [PDF file]
• Schouteden, H. (1934). Annales Musee Congo belge Zoologie 3 Section 2, 3, 1-84. [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/ [2024-11-15].