Cryptic Spreadwing. Kriptiese Spanvlerkie.
Family Lestidae Calvert, 1901
- Lestes dissimulans (Fraser, 1955)
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Medium-sized greyish blue, speckled with bright blue eyes above and greyish below.
Key identification features:
- Highly variable in colour varying from brown to grey blue.
- Young male brown with dark spits becoming greyish blue. Thorax has small dark spots on the sides and ornamental markings on the dorsal thorax visible as to circular marks mid dorsal . With age the dorsal thorax marking will pruinose to a greyish brown rendering the marking invisible.
- Abdominal segments 9 -10 are fully covered by a light blue or whitish pruinosity.
- Pterostigmas dark brown with fine pale borders, longer than 1 mm.
- Superior appendages are black. Upper clasper has a single blunt tooth close to the base.
- Greenish brown with similar dark spots as the male
Compared with other species:
- L. tridens, Spotted Spreadwing, is also speckled but has whitish appendages and three teeth on the inside of each upper clasper. Also the pterostigmas of the L. dissimilis are longer (>1 mm.) The pterostigmas of L. tridens is <1mm.
Distribution and habitat:
- Savanna species from the northern parts of South Africa and KZN. New records now indicate stable populations in Gauteng, Eastern parts of NWP and LP.
- Frequents shallow seasonal ponds, pools and swamps with abundance of grass and sedge in hot savanna.
- Hangs with wings outstretched from grass stems and rushes over water. Breeds in the stems of sedge. Strong flyer