Plant host specificity of prey buprestid beetles was used to estimate the minimum distance of hunting flights by the solitary fossorial wasp, Cerceris fumipennis Say. Plant hosts of the 5 beetle species investigated were each found at less than 200 m of the wasp nesting area. Although these results indicate neither average nor maximal hunting range, they suggest a working hypothesis that foraging in close proximity to the nesting site may be the norm.