A picture of a carpenter bee feeding.  Photo provided by: Karan A. Rawlins, University of Georgia, Bugwood.org

Galleries and tunnel made by female carpenter bee.  Photo provided by: USDA Forest Service Archive, USDA Forest Service, Bugwood.org

A picture of a bumble bee.  Notice the difference on the abdomen–lots of hairs.  Carpenter bees do not have hairy abdomens.  Photo provided by: Whitney Cranshaw, Colorado State University, Bugwood.org