All billbugs have their mouthparts at the end of a "snout" or "bill" from which they get their name (see image below)
Corn billbug damage can be easily confused with wireworm, cutworm, seedcorn maggot, stink bug and seedcorn beetle.
Yellow Nutsedge is recognized as a major host.
Billbugs that sometime feed on corn exist across the United States but are more of a problem in the Southeast and the Southern Corn Belt
Southern Corn Billbug (photo above)
Maize Billbug (photo above)
Clay-Colored Billbug (photo above)
Bluegrass Billbug (photo above)
(photo by Jeff Hahn, University of Minnesota)
*Photo of billbug larva from Purdue University Extension Service