Philoliche (Returneria) alternans Macquart, 1855 - Identification
Length 13 mm. Head with clypeus not protuberant, ocelli at vertex present. A blackish species, with a short stout abdomen marked with tomentose bands. Antennal bases widely separated. Antennae and palpi blackish, forehead very wide. Face covered with long white hairs; beard thick and white. Legs red. Thorax black covered with thick fulvous tomentum and with pale longitudinal bands and white tufts of hair are apparent above and below the root of wings.
Abdomen stout, the ground colour black, the segments with tomentose bands on the posterior borders, alternating yellow and white: white on the second and forth segment; yellow hind borders of the other segments. (The albifacies form may have only grey bands).
Wings hyaline, the reddish veins shaded pale brown, most noticeable on the transverse veins; cell r5 open; vein R4 with appendix.
Original description by Macquart:
https://www.biodiversitylibrary.org/item/53388#page/469/mode/1up
Description by Ricardo (Corizoneura albifacies):
Ricardo, G. 1914. List of South African Tabanidae (Diptera) in the South African Museum, with descriptions of new species. Ann. s. Afr. Mus. 10
https://www.biodiversitylibrary.org/item/17383#page/666/mode/1up
This species occurs in the Cape (Albany Thicket; Cape floristic region (fynbos); Succulent karoo); records from: Cape Agulhas type locality; Ceres; Swellendam; Mossel Bay; Jeffreys Bay; Humansdorp; Zwartkop, Gqeberha; Groot Rivier, Plettenberg Bay Dist; Kasouga Dunes, Port Alfred Dist; Bathurst Dist.; Port Alfred; Wilderness; Strandfontein.
iNat observations:
https://www.inaturalist.org/observations/172194039
https://www.inaturalist.org/observations/63360857
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