About Sitona cylindricollis Fåhraeus, 1840
Sitona cylindricollis, commonly known as the sweetclover weevil, is a species of broad-nosed weevil belonging to the beetle family Curculionidae. It is found in North America. In this region, it acts as a pest of sweetclover and alfalfa. The larvae of this weevil feed on the root nodules of these host plants, and eventually pupate near the soil surface.