Aphid-hunting-wasp
Guides
Diodontus
Diodontus is a genus of solitary aphid-hunting wasps in the family Crabronidae (subfamily Pemphredoninae). Species are distributed across Europe, Africa, and North America. The genus includes cryptic species that can be morphologically nearly identical but ecologically differentiated, as demonstrated by D. argillicola and D. tristis, which are separated primarily by nesting substrate preference (clay versus sand) rather than visible morphology. Females construct nest tunnels in soil or substrate and provision them with paralyzed aphids as larval food.