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Genus Coelioxys - Cuckoo-leaf-cutter Bees

fall Coelioxys - Coelioxys Bee ? - Coelioxys dolichos Megachilidae - Leaf-cutter Bees  Coelioxys octodentata - Eight-toothed Cuckoo-leaf-cutter Male - Coelioxys octodentatus Large Cuckoo Leafcutter Bee - Coelioxys modestus - female tiny leafcutter bee Megachile sp. - Coelioxys - male cuckoo leaf-cutter bee - Coelioxys - female Cuckoo Leafcutter found near Mexican border - Coelioxys edita - female Cuckoo Leafcutter Bee - Coelioxys dolichos
Classification
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 Leafcutting Bee, Leafcutter-parasite
Pronunciation
seal-ee-OX-ees
Explanation of Names
Coelioxys Latreille 1809
Greek coelia 'belly' + oxys 'sharp'(1) (refers to the sharp ovipositor and tapered female abdomen)
Numbers
46 spp. in 9 subgenera in our area, ~500 spp. in 15 subgenera worldwide(2)
Size
7-10 mm
Identification
Abdomen conical, pointed in female, armed with teeth or spines in male(3); lack pollen baskets under abdomen, otherwise resemble a Megachile
Range
worldwide [Discover Life Map(2)]
Habitat
Seen at flowers in fields, etc.
Season
Typically Jun-Sep in NC(4)
Food
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