May Beetle, or June Bug, a large brown beetle. It is common in the central and southern United States. The adult is about one inch (2.5 cm) long, and has a small head, glossy back, and slender legs. The beetles fly at night in late spring, and often do serious damage to the foliage of trees and shrubs. They are attracted to bright light.
The female lays from 50 to 100 small, white eggs a short distance underground. Brown-headed white grubs (larvae) hatch in about three weeks. The grubs feed on grass roots, berries, and some vegetables. They are particularly destructive during their second year, just before entering the pupal stage. Adults emerge the following spring. Control measures include fall plowing and the use of insecticides to kill the grubs.
May beetles belong to the genus Phyllophaga of the scarab family, Scarabeidae.