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Genus Coelioxys - Cuckoo Leaf-cutter Bees

Bee - Coelioxys Coelioxys sp. ? - Coelioxys Coelioxys? - Coelioxys - male Say's Cuckoo-leaf-cutter - Coelioxys sayi - female Unknown Bee - Coelioxys cuckoo-leaf-cutter bee male - Coelioxys Unknown Hymenopterid - Coelioxys Coelioxys coturnix female - Coelioxys coturnix - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Megachilidae (Leafcutter, Mason, and Resin Bees, and allies)
Subfamily Megachilinae (Leafcutter, Resin, Mortar, Sharptail, Mason, and Woolcarder bees and relatives)
Tribe Megachilini (Leafcutter, Resin, Mortar, and Sharptail bees)
Genus Coelioxys (Cuckoo Leaf-cutter Bees)
Other Common Names
Cuckoo Leaf-cutting Bees
Explanation of Names
Coelioxys Latreille 1809
Greek coelia 'belly' + oxys 'sharp'(1) (refers to the sharp ovipositor and tapered female abdomen)
46 spp. in 9 subgenera in our area, ~500 spp. in 15 subgenera worldwide(2)
7-10 mm
Abdomen conical, pointed in female, armed with teeth or spines in male(3); lack pollen baskets under abdomen, otherwise resemble a Megachile
worldwide [Discover Life Map(2)]
Seen at flowers in fields, etc.
Typically Jun-Sep in NC(4)
Adults take nectar at flowers. (They must be eating for themselves, because they do not provision a nest.)
Life Cycle
Cleptoparasites, usually of Megachile (other hosts known outside our area). Using their sharp abdomen, the female breaks into Megachile nests (and removes eggs?) laying its own eggs on the provisions (stored pollen)(5)(6)
Print References
Baker J.R. (1975) Taxonomy of five nearctic subgenera of Coelioxys (Hymenoptera: Megachilidae). U. Kans. Sci. Bull. 50: 649-730.
Internet References