Irwinomyia gen. n.

Type species: Irwinomyia argentea sp. n.

Description: Small, dark brown, gold-silver pruinose stenopogonine asilids with the following combination of characters: Head (Fig. 21): clearly wider than high in anterior view. Antenna: scape a little longer than pedicel, segment 3 ca. twice as long as scape and pedicel combined, style small with terminal spine-like seta. Mystax shiny, confined to lower 縠 of plane face (ventral part slightly protuberant); palpi 2- segmented. Thorax: postmetacoxal area membranous; anepimeral bristle absent; ca. 3--4 pairs scutellar macrosetae. Wing (Fig. 22): ca. 3--4 mm long, transparent, immaculate, uniform microtrichial cover, C extends around entire wing margin, cells m3 and cup open at wing margin. Legs: pulvilli and empodia well developed. Abdomen: ♂ terminalia rotated through 90°; ♂ epandrium short, with little indication of separation into two lobes; hypandrium moderate in size with mediodistallobe.

Etymology: f. - named for Dr Michael Irwin, collector of all known material of this genus.