Agrostomyia gen n.

Type species: Agrostomyia dimorpha sp. n.

Description: Medium-sized, Scylaticus-like asilids with dark head and thorax, largely orange legs and sexually dimorphic abdominal coloration, and the following combination of characters: Head (Fig. 1): clearly wider than high in anterior view. Antenna (Fig. 2): scape ca. twice as long as pedicel, segment 3 ca. 1.5 times as long as scape and pedicel combined, style small, conical with terminal spine-like seta. Mystax occupies lower, slightly protuberant l of otherwise plane face; palpi well developed, 2-segmented. Thorax: postmetacoxal area membranous; anepimeral bristle absent; ca. 5 pairs scutellar macrosetae and smaller setae extending onto disc. Wing (Fig. 3): ca. 6-10 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: 9 terminalia rotated through 90 0; d epandrium short, fused proximally for ca. J length; hypandrium elongate, ventrally directed with upturned distal part.

Etymology: Gr. f. agrostis - grass + myia - fly (refers to grass inhabiting behaviour of species). A single species known.