Red-veined Dropwing Trithemis arteriosa Rooinerfie.
Red-veined Dropwing, Trithemis arteriosa, Rooinerfie is small sized, slender, bright red, with bright red wing veins and black on side of tip of abdomen.
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- Guide to Dropwings - General (Trithemis)
- Guide to Dropwings - Blue
- Guide to Dropwings - Red/Orange/Brown
Key identification features:
- Face deep red. Labium deep yellow with central dark brown stripe. Labrum dark red with notched black patch on lower margin. Anteclypeus, postclypeus and front of frons dark red. Top of frons and top of head dimpled deep red with metallic purple sheen
- Eyes bright red with greyish lower margin.
- Thorax red with indistinct black side stripes. Top of the thorax.becomes violet colored with age
- Well defined red veins in wings. and light orange splashes at the bases. Splashes larger in hindwings. In the Western Cape they can be almost brown, more broken and less extensive. Pterostigmas, 2.3–2.4 mm, deep reddish brown.
- Bright red abdomen with very diagnostic black markings on the side.
- Abdomen red and slender . In side view, segments 6 - 8 has black wedges that become increasingly larger up to a black s 9 - 10. Yellow bands on the hind margin of s 8-10
- Young Male and females are similar in colour.
- Colour varies from yellowish to straw coloured yellow, darkish brown, brown with age with black and yellowish stripes .
- Female and immature males have a yellowish-russet abdomen with a pale streak between the wings. Orange wing splashes, distinct cream stripe that runs between wing bases present, Western Cape females may have wings that have orange splashes around nodus.
- Abdominal markings similar to that of the male.
Compared with other species:
- Sometime a violet colored sheen is visible on top of the thorax. This must not be confused with the violet colour thorax of T. annulata (Violet Dropwing).
- The abdominal markings of T. annulata differ significantly with less black on the side.
Distribution and habitat:
Probably the most populated species in the region of Southern Africa.
Frequents pools, dams, marshes and still and sluggish reaches of rivers streams and large lakes and flowing channels in
marshes, mostly in open landscapes, but also open areas in forest.
From 0 to 2400 m above sea level, but mostly below 1700.
- Perches conspicuously on emergent twigs or reeds at water's edge, but on hot days will move into the shade of trees.
- Females sometimes found well away from the water.
Websites of interest
The IUCN Red List of Threatened Species (Least Threatened)
Odonata Atlas of Africa VMU Number 668670
A Visual Guide to the Damselflies and Dragonflies of South Africa