Northern Prairie Wildlife Research Center
Green with continuous yellowish dorsal, broken subdorsal and supraspiracular, and broad spiracular stripes. Setae arise from whitish spots; each segment with 2 white dots to either side of middorsal stripe (green fruitworms in Orthosia and related genera have 1 or no clearly defined dorsal spots). Head green, shiny with creamy upper lip. One of many species referred to as "green fruitworm." Food: cherries, oaks, and probably other trees and shrubs. Caterpillar: May and June; 1 generation.