Digger bee visiting a flower. Photo by: Whitney Cranshaw, Colorado State University, Bugwood.org.

Digger bee hole in the soil. Photo found at: http://www.entomology.wisc.edu/diaglab/08hilite/05-07.html and probably taken by Pat Finley.

Digger bee adult. Photo found at: http://www.entomology.wisc.edu/diaglab/08hilite/05-07.html.

White prunicola scale found on lilac. Photo by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware.