Cremastinae is a worldwide subfamily of the parasitic wasp family Ichneumonidae.

Cremastinae are koinobiont endoparasitoids of Lepidoptera; and sometimes, Coleoptera larvae in tunnels, leaf rolls, buds and galls.

Cremastines are usually slender and brightly colored wasps, though exceptions exist.

[1] They are most commonly found in warm and dry habitats such as coastal areas or heathlands.

[1] This Ichneumonidae-related article is a stub.