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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.
Osmia
Mason Bees
Osmia is a large genus of solitary bees in the family Megachilidae, commonly known as mason bees. The genus includes approximately 500 species worldwide, with many species native to North America. Mason bees are named for their use of mud or other masonry materials to construct and seal nest cells. They are important pollinators of agricultural crops and native plants, and several species are managed commercially for orchard pollination. Unlike honey bees, mason bees are solitary, do not produce honey, and rarely sting.