Balloon flies

Definition

A group of flies (Empidinae) known for their elaborate courtship rituals involving the transfer of nuptial gifts, often including prey wrapped in silken balloons.

Etymology

From their characteristic practice of presenting balloon-like structures during courtship.

Example

Male balloon flies often present females with balloons filled with prey as a sign of courtship.

Related Terms

• Empidinae
• Nuptial gifts
• Courtship

Usage Notes

Balloon flies exhibit diverse mating behaviors, including sex-role reversal in some species.