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July 10-12, 2009
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Species Xylocopa virginica - Eastern Carpenter Bee

Eastern Carpenter Bee - Xylocopa virginica - female Eastern Carpenter Bee - Xylocopa virginica - female Large Bee?  - Xylocopa virginica - female Large Carpenter Bee - Xylocopa virginica - male KS Carpenter #2 - Xylocopa virginica - male Large Carpenter Bee, Male - Xylocopa virginica - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Bees, Ants, and other Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Apidae (Cuckoo, Carpenter, Digger, Bumble, and Honey Bees)
Subfamily Xylocopinae (Carpenter Bees)
Genus Xylocopa (Large Carpenter Bees)
Species virginica (Eastern Carpenter Bee)
Other Common Names
Common Carpenter Bee, "Carpenter Bee"
Size
19-23 mm
Identification
Large, black hairless abdomen, yellow pile on thorax. Males have yellow/white face. Common in eastern North America, and the only member of its genus in much of range.

See Univ. of Florida for a key separating this from Xylocopa micans, which occurs only in the southeastern US. Also compare the introduced Giant Resin Bee, which is found in southeastern United States.
Range
Eastern and east-central United States and southern Ontario, Canada

Habitat
Forests and adjacent areas with flowers.
Season
Early spring-Fall
Food
Adults take nectar from many flowers, often biting into base of flower to "rob" it without pollinating. Seen, however, to pollinate Passiflora incarnata quite effectively--pollen is deposited on thorax.
Life Cycle
Nests (galleries) are built in dry, standing wood. Conifers are preferred. Eggs are laid on masses of pollen and nectar, several (6-8) to a gallery. One generation per year in most of range. Adults emerge in late summer, overwinter, mate and nest in spring. Perhaps two generations per year in Florida. See excellent account at Univ. of Florida.
See Also

Giant Resin Bee , (links under identification above).

Bumblebees, Bombus species , are somewhat smaller and typically have hairy abdomen.
Print References
Arnett, p. 608 (1)
Swan and Papp, p. 579, fig. 1246 (2)
Lutz, 3rd ed., plate 100 (3)
Borror and White, plate 16, pp. 360-361 (4)
Salsbury, p. 290--photo (5)
Brimley, p. 461--lists flight as "whole season" in North Carolina (6)
Internet References
Univ. of Florida describes life history, range and identification of the two eastern species.
Univ. Florida--PDF fact sheet, like above.
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
By Ross H. Arnett
2.The Common Insects of North America
By Lester A. Swan, Charles S. Papp
3.Field Book of Insects of the United States and Canada, Aiming to Answer Common Questions,
By Frank Eugene Lutz
4.A Field Guide to Insects
By Richard E. White, Donald J. Borror, Roger Tory Peterson
5.Insects in Kansas
By Glenn A. Salsbury and Stephan C. White
6.Insects of North Carolina
By C.S. Brimley