Southern Fingertail. Suidelike Vingerstert.
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Gomphidia quarrei, Southern Fingertail, Genus Gomphidia, Family Gomphidae, fairly large sized, with a very clearly yellow and black striped thorax, very slender abdomen with small yellow bands It has a club without foliations on the terminal segments.
Key identification features:
- Face greenish yellow with fine dark brown and black spots and transverse lines.
- Eyes brownish above, greyish green below.
- Neck black above, black with yellow spots on sides.
- Thorax yellow to yellowish green with dark brown stripes, yellow and brown stripes of equal width.
- Wings clear, slightly smoky at tips. Venation brownish black, leading edge of costa yellow. Pterostigmas long (5 mm), narrow, black.
- Abdomen slender with black and yellow rings, widening at segment 7 into a club without foliations. First two-thirds of segment 7 bright yellow. Superior appendages long, yellow with black tips.
Inferior appendages extremely short, dark brown, conical.
- Similar, yellow is reduced but bold yellow mark on segment 7 is distinctive.
Compared with other species:
- Common Tigertail, Icterogomphus ferox, has very distinctive foliations on S8. S8-10 have mottled yellow markings compared with G. quarrei. If bands are not visible identify this species by wing venation.
Distribution and habitat:
- Uncommon and localized in the north east of South Africa. Several new locations were discovered recently in the north western region of South Africa, along tributaries of the Limpopo River.
- In southern Africa, it occurs in streams and rivers in forest and woodland, as well as in wet savannah regions. It is locally abundant along the Kwando River in Namibia, where it flows through high reeds.
- Perching along open rivers and larger streams in savanna to forest, conspicuously on top of reeds and branches.