Carpenter bees are pests around wood -- boring perfectly round holes for their nests.
Carpenter bees can be found across the southern United States from Arizona to Florida; and in the eastern United States, north to New York.
Carpenter bees inhabit a broad range of ecosystems from tropical to subtropical to temperate. They forage for food in vegetable and flower gardens and excavate wood for their nests.
Carpenter bees mate and lay eggs in spring, but remain active until early fall.
Carpenter bees are solitary bees. They make nests for their young by tunneling into wood, vibrating their bodies by chewing the wood with their mandibles. They prefer wood that is unpainted and weathered.
Carpenter bees are sometimes confused with bumblebees. The easiest way to tell the two apart is that most carpenter bees have a shiny abdomen, whereas bumblebee abdomens are covered with thick hair. Here's a list of other differences between carpenter bees and bumblebees.