They appear large, stout and with legs covered in bristles and appear like carpenter bees in the genus Xylocopa and the resemblance is considered as a case of aggressive mimicry, providing protection from predators.

[2][3] These robberflies are large with a broad abdomen, with long and dense hairs on the femora, tibiae and basal tarsus segments of the leg.

The antennae have a stout basal segment that is longer than the next which is knob-like at the distal end.

The third antennal segment is elongated and slender widening towards the middle and becoming spindle shaped.

This article related to members of the fly family Asilidae is a stub.