Best Coelioxys
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Coelioxys inermis is a Palearctic sharp-tailed cuckoo bee described by Kirby in 1802, notable for developing as a brood parasite in leafcutter-bee nests.
Coelioxys octodentata is a Palearctic cuckoo bee distinguished by its sharp, spiny abdomen, which it uses to infiltrate and parasitize the nests of megachilid bees.
Coelioxys rufitarsis is a solitary cuckoo bee found in North America, notable because it lacks pollen-collecting structures and parasitizes leafcutter bee nests.
Coelioxys conoidea is a solitary bee native to Eurasia, notable as a kleptoparasite because females lay their eggs in the active nests of leafcutter bees to feed on their pollen.
Coelioxys rufescens is a solitary cuckoo bee found across Eurasia, notable for its parasitic breeding strategy of laying eggs in the provisioned nests of other leafcutter bees.
