Dusona is a genus of parasitoid wasps belonging to the family Ichneumonidae.

[2] Dusona is an easily recognized genus among other Campopleginae due to a number of clear diagnostic characteristics which include: elongated, oval or slit-shaped propodeal spiracles; a very strongly compressed metasoma; closed areolets and petiolar sutures that are often obliterated or positioned very low anteriorly.

Additionally are many species able to reach unusually large body sizes, some exceeding 20 mm (see Dusona falcator).

[3] All species of Dusona are parasitoids, with the main hosts being the larvae of Lepidopterans.

The host is usually killed as a prepupa, in a few cases as a pupa.