Allocnemis vicki Dijkstra & Schütte, 2015
Blue-shouldered Yellowwing

Type locality: Baba II, Bamenda, Cameroon

Diagnosis

Male belongs to the pauli-group by the combination of (a) the blue-marked head and thorax; (b) the anteriorly blue femora and tibiae; and (c) the orange abdomen tip, which as in its sister-species A. pauli covers the entire dorsum of the cerci and S9-10, with a dorso-apical spot on S8, although the latter can be absent in A. pauli. Differs by (1) the narrowly black-bordered blue rather than wholly black labrum, although A. pauli rarely has a blue central spot; (2) the almost completely blue mesepisterna, rather than with antehumeral stripes that are about half as wide as mesepisternum; and (3) the paraprocts that extend as far as the tips of the cerci, rather than somewhat beyond. [Adapted from Dijkstra, Kipping & Mézière 2015]

Habitat description

Headwater streams shaded by forest. Usually with coarse detritus and often a sandy and/or probably gravelly bottom. From 0 to 1900 m above sea level.

Distribution

confirmed: Cameroon; Nigeria

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.


Reference

  • Dijkstra, K.-D.B., Mézière, N., and Kipping, J. (2015). Sixty new dragonfly and damselfly species from Africa (Odonata). Odonatologica, 44, 447-678.

Citation: Dijkstra, K.-D.B (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za/ [2019-05-24].