Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Fall Fund Drive

TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Coelioxys - Cuckoo-leaf-cutter Bees

Coelioxys? - Coelioxys Bee to check out. - Coelioxys rufitarsis Megachilid Bee - Coelioxys sp. - Coelioxys - female Wasp/Hornet? - Coelioxys Brule River Hymenoptera - Coelioxys - female  Anthophila, Bee, Q2 ID Please - Coelioxys sayi - male ID REQUEST: Coelioxys octodentata? - Coelioxys octodentatus - female Cuckoo Leafcutter Bee - Coelioxys immaculatus - female
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
Tribe Megachilini
Genus Coelioxys (Cuckoo-leaf-cutter Bees)
Other Common Names
Cuckoo Leafcutting Bee, Leafcutter-parasite
Synonyms and other taxonomic changes
Coelioxys Latreille 1809
Explanation of Names
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
ca. 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 [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)
See Also
Print References
Baker, J. R. 1975. Taxonomy of five nearctic subgenera of Coelioxys (Hymenoptera: Megachilidae). University of Kansas Science Bulletin 50: 649-730.
Internet References