Ormia depleta has four stages in its life cycle,
egg,
larva,
pupa and adult. The adult female is attracted by the song of either the
tawny mole cricket (
Neoscapteriscus vicinus) or the
southern mole cricket (
Neoscapteriscus borellii). The repeated chirps are emitted by the male crickets to attract females to breed, and the song also lures the female fly. Her eggs hatch inside her abdomen and she deposits a larva on any mole cricket with which she comes in contact. The fly larva feeds on the mole cricket and eventually kills it, then the fly larva emerges from the carcass and makes its way into the soil where it pupates. The adult fly emerges from the pupa about eleven days later. It feeds on the
honeydew secreted by insects such as aphids. ==Biological control==