Dirhininae is a subfamily of chalcidid wasps in the family Chalcididae. There are four genera.

Dirhinini have a pair of horns on the head and found in the tropics. This group has more than 100 species but many are undescribed.

It develops as a parasite using a host, usually various Brachycera.

The wasp uses its horns, mandible, and their heavy body to emerge from the host.

...