Blue Basker. Blousonvangertjie.
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Key identification features:
- Eyes are black above and grey below.
- Thorax is Blue grey with to black stripes, often thorax blue pruinose with maturity.
- Hindwing with large, blackish, basal patch, with fine, amber halo.
- Forewing with minute traces of basal amber. Veins dark brown with cream coloured Ax veins and outer costal veins.
- Pterostigmas are light yellowish with a thin, black margin along the front edge.
- Abdomen is deep blue with distinct dark ladder-like blue/black arrowhead like pattern from the base to tip. Pruinose with maturity.
- Superior appendages brownish in colour.
- Similar patterned as male but light yellowish brown.
- Wing pattern not as distinct as in male.
Compared with other species:
- Similar to the Red Basker, U. assignata, but different in colour.
- Female U. assignata has reddish abdomen and less distinct abdominal markings than the female U. edwardsii
Distribution and habitat:
- Fairly common in the eastern coastal regions and the warm northern parts of South Africa.
- Prefers standing waters, rivers and flowing channels in marshes, but possibly also lakes, in open landscapes, open areas in forest or shaded by gallery forest. Usually with emergent vegetation and often coarse detritus and a soft muddy bottom.
- From 0 to 1600 m above sea level.
- Strong flight but soon returns to perch.
- Typically rest in ‘pennant’ position, i.e. at the tip of a conspicuous perch, with legs thrust forward and wings raised with the abdomen angled up or down.