Pollinator-enemy
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Leucospis affinis
Leucospis affinis is a large chalcidoid wasp and the most common and widespread North American species in the family Leucospidae. Females are easily recognized by their whip-like ovipositor that curls over the dorsal surface of the abdomen, which they use to drill through wood and deposit eggs in the nests of solitary bees. The species is an external parasite (ectoparasitoid) primarily of megachilid bees including leafcutter bees (Megachile), mason bees (Osmia), and resin bees (Dianthidium), though it has also been recorded from the mason wasp Ancistrocerus antilope.
Leucospis affinis affinis
Leucospis affinis affinis is a chalcidoid wasp in the family Leucospidae, notable for being among the largest members of its superfamily. Females are distinguished by an ovipositor that curves over the dorsal abdomen, used to drill into wood and parasitize solitary bees nesting in pre-existing cavities. The subspecies is primarily a parasite of megachilid bees including leafcutter bees (Megachile), mason bees (Osmia), and resin bees (Dianthidium). Larvae develop as external parasites attached to host bee larvae, completing development in approximately 7–12 days before pupating within the host's cocoon.