100 505 Trithemis donaldsoni Denim Dropwing Male Farm Alicedale Dec 2015r 3 100 1092 Trithemis donaldsoni Denim Dropwing Male Tzaneen Nov 2016r 1 100 1095 Trithemis donaldsoni Denim Dropwing Male Tzaneen Nov 2016r 7

Denim Dropwing.     Denimvalvlerkie

Links to images and articles:
Short description:

Denim Dropwing, Trithemis donaldsoni, Genus Trithemis, Family Libellulidae, is all light blue with contrasting dark brown eyes.

Key identification features:

Males:

  • Face is light brown with dark brown eyes with grey spots below.
  • Thorax (short and stubby) and abdomen are an even pale blue to pruinescent light grey .
  • Wings are clear with veins close to thorax showing light blue. Wings as long as abdomen..
  • Pterostigmas are reddish brown between black veins, but very pale yellowish-brown on underside, especially in forewing.

Females:

  • Seldom seen. Lives far from water.
Compared with other species:
Distribution and habitat:
  • Found in warm eastern and northern side of South Africa.
  • Rivers in open landscapes, shallow, rocky, strong flowing savanna rivers.  Usually with rocks. Found from an altitude of 0 to 1700 m above sea level, but mostly between 200 and 1600.
Behaviour:
  • Territorial males perches mostly on stones or rocks midstream.
  • Strong flyer, frequently darting off, returning to same perch.
Further reading and other information:
http://vmus.adu.org.za/vm_map_afr.php?&database=odonata&grid=2&outline=1&key=0&map=4&spp=668800
Books:
A Guide to Dragonflies and Damselflies of South Africa
   p. 198
Dragonflies and Damselflies of South Africa   p. 180
Dragonfly Biotic Index   p. 177
Websites of Interest:
Odonata Atlas of Africa VMU Number 668800

The IUCN Red List of Threatened Species
Warwick Tarboton
A Visual Guide to the Damselflies and Dragonflies of South Africa
Other Information:

Size Comparison Diagram Dragonflies, Damselflies
Morphology of a
Dragonfly, Sketch 1, Sketch 2,  Damselfly
Map of South Africa

X

Right Click

Copyrighted material - contact us if you want to buy a photo