On May 24, 7:05 pm, "Kevin" wrote:

Yes they are. And they'll bore holes into wood to lay eggs.

Agreed, Pictures are typical of carpenter bees.

They can also use most any enclosed area to nest in.
I had a group build
a nest in the three inch gap between the floor of a dog house and the
ground. After we turned over the dog house (and ran like crazy) the
air became literally black with carpenter bees.-

Disagree. Carpenter bees are solitary except for the male hanging
around at breeding time. They have one female to a nest.

What you describe are bumble bees, which live in colonies. They look
very much alike at a glance. The difference is the carpenter bee is
about half yellow and half black where the bumble bee is predominantly
black with a much smaller amount of white/yellow.

Red