Noun has 2 senses

• may beetle(n = noun.animal) cockchafer, may bug, melolontha melolontha - any of various large European beetles destructive to vegetation as both larvae and adult;



• may beetle(n = noun.animal) june beetle, june bug, may bug - any of various large usually brown North American leaf-eating beetles common in late spring; the larvae feed on roots of grasses etc.;