It is widely distributed in North America. Larvae have been reported feeding on sprouting corn seeds, and on grass roots.
Eggs are laid directly in the food material, wherein the larvae develop.
Pupation occurs in the soil beneath the food source. Fairways were vegetated with annual and Kentucky bluegrasses. Sears interpreted these data to suggest that A. granarius had two generations per year in southern Ontario. Click on' the thumbnail image to download a full-size image. Bathurst, Kouchibouguac National Park, Shediac, Tabusintac.