Mesostoinae

The Mesostoinae is a subfamily of braconid wasps with a Gondwanan distribution. The members of this family display sexual dimorphism, males are brachypterous, which means that they have reduced, non-functional wings.

Biology
The Mesostoini and Hydrangeocolini include primary gall formers on Banksia and parasites of the gall-forming Cecidomyiidae. The Avgini include parasitoids of leaf-mining and leaf-rolling Lepidoptera.

Genera
This subfamily contains the following thirteen genera:

Avgini (Austrohormiini)

 * Apoavga
 * Austrohormius
 * Canberria
 * Doryctomorpha
 * Hormiitis
 * Neptihormius
 * Proavga

Hydrangeocolini

 * Aspilodemon
 * Hydrangeocola

Mesostoini

 * Andesipolis
 * Opiopterus
 * Mesostoa
 * Praonopterus