Astiptomyia gen. n.

Etymology: From Greek astiptos (untrodden, desert, solitary, off the road) and myia (fly). Refers to the arid habitat in which this fly was found. Feminine gender.

Type species: Astiptomyia bikos sp. n., by present designation.

Diagnosis: Stenopogonine asilids with the following combination of characters. Head: Antennal postpedicel elongate, style composed of 3 elements (2 slender segments and terminal spine-like seta); head clearly wider than high in anterior view (not more or less circular); face slightly convex; mystax long, covering entire face; vertex distinctly excavated; angle of divergence of frons/vertex in anterior view <20°; palpi 2-segmented, well-developed; proboscis straight. Thorax: Dorsocentrals undifferentiated; anatergites asetose; metepisternal macrosetae absent; postmetacoxal area membranous; pulvilli present, but minute; wing with cell m 3 open at margin; costal vein extends around wing margin, terminating at A 1 (anal cell and alula without bordering vein); cell m 3 closed and stalked; stump-vein at base of R 4 absent. Abdomen: Segments wider than long and somewhat dorsoventrally flattened; segments 1–7 clearly visible, terminal segments somewhat reduced and withdrawn.

Remark: The description of this new genus follows the discovery of a few specimens (placed with Acnephalomyia material in the NMSA collection), that, although superficially similar to Acnephalomyia, are clearly digeneric.