Research suggests that the family originated on Gondwana before the break-off of Australia.

[1] Some species from the tribe Labenini have been reared from wood-boring beetles of the Coleopteran families Buprestidae, Cerambycidae, and Curculionidae.

[1][5] Species of Poecilocryptus are thought to be phytophagous, due to adaptations of the larval head capsule.

[6] However, as with much of the Ichneumonidae, knowledge of many labenine species' ecology, biology, and evolution is extremely limited or completely lacking.

[citation needed] These genera belong to the subfamily Labeninae:[1][7][8] Data sources: i = ITIS,[9] c = Catalogue of Life,[10] g = GBIF,[11] b = Bugguide.net[12]