Cotesia glomerata, the white butterfly parasite, is a small parasitoid wasp belonging to family Braconidae.

The adults of Cotesia glomerata can reach a length of 3–7 millimetres (0.12–0.28 in).

[2] After hatching from the pupae, females mate almost immediately and begin laying eggs.

These newly emerged larvae spin cocoons in a cluster on or nearby the host caterpillar; after 7 to 10 days the imago adult wasps hatch from these cocoons.

[3] Cotesia glomerata is in turn parasitized by the hyperparasite wasps Lysibia nana and Gelis agilis.