Digger Bees live solitary lives and do not create colonies. Adults Digger Bees are queens or males. Andrenid bees – characterized as solitary, hairy-bodied, burrowing, and short-tongued – burrow in the ground, creating long, vertical tunnels. They then create lateral branches off of the tunnel to each individual cell, provisioning each cell with nectar and pollen. Occasionally, in bare-ground areas of the yard, higher numbers of Digger Bees will nest near each other. Both sexes of Digger Bee overwinter in these nests.
Colletid bees will nest in a variety of cavities found in the ground. Due to their habit of smoothing nest walls with their secretions, Colletids are typically referred to as plasterer bees or polyester bees. These bees create straight tunnels with many shorter branches, which contain multiple cells and are also provisioned with nectar and pollen.
Halictid bees resemble andrenids in nesting habits. Sometimes large numbers of nest close together, often sharing the same tunnel to the outside. Developmental time can be about 2 weeks. Sweat bees are sometimes a nuisance when they are attracted to perspiration as a moisture source. They can give a mild sting, especially when being brushed away.