Trichoura Londt, 1994

Londt, Jason G. H. & Dikow, Torsten, 2016, A review of the genus Trichoura Londt, 1994 with the description of a new species from the Northern Cape Province of South Africa and a key to world Willistonininae (Diptera, Asilidae), African Invertebrates 57 (2), pp. 119-135 : 120

Trichoura Londt, 1994 Figs 1-6, 7-8

Type species.

Trichoura torynopoda Londt, 1994: 93 by original designation.

Diagnosis.

Small, brown-yellow, strongly silver pruinose asilids with the following combination of characters: Head: Clearly wider than high in anterior view; mystax white, macrosetae tightly packed, confined to a slight gibbosity on lower facial margin; face narrow, frons diverging abruptly from level of antennal sockets; macrosetae on lateral margin of frons; palpi small, 2-segmented. Thorax: Anterior anepisternal setae absent; anatergites asetose; postmetacoxal area membranous. Wing: Transparent, immaculate, fairly uniformly microtrichose; alula reduced in size; C extends almost entirely around wing margin (weakly after junction of CuA and CuP), cells m3, and cua closed and stalked. Legs: Pulvilli and empodia well developed; metathoracic coxae with an anteriorly situated protuberance. Abdomen: ♂ terminalia unrotated; ♂ epandrium commonly with long, silvery, prone setae masking shape; hypandrium absent or fused with well-developed gonocoxites which are fused medially to form a cup-shaped sclerite supporting gonostyli and other elements of the terminalia.