Therevidae
Diagnostic description:
Slender to moderately thick-bodied flies; length, excluding antennae, 2.5-15 mm. Background color light yellow to black. Body wholly or partly pilose, tomentose, and pruinose; setae usually prominent. Wing venation constant; R4 elongate, sinuous; cell d elongate, with three veins extending from its apex; crossvein m-cu present. (Irwin & Lyneborg 1981)