Concentrations of Cd, Cu, Fe, and Zn were measured in queens of fourBombusspp. and onePsityrussp. collected in the same area. The degree to which their concentrations in the various species reflected metal pollution levels in the area was assessed. Concentrations were the lowest for Cd, intermediate for Cu, and highest for Fe and Zn. No marked variation in concentrations of any of the metals was found among theBombusspp. Fe concentrations inPsityrussp. were significantly lower than those inBombus. Concentrations ranges within species were higher for Cd than for the essential metals.