Extension > Garden > Diagnose a problem > What insect is this? > Trees and shrubs > Caterpillars, maggots, grubs, and similar immature insects - Longer than 2 inches > Cecropia caterpillar
Cecropia caterpillar
Hyalophora cecropia
Jeff Hahn, University of Minnesota Extension
Description: 4 inches long. Light green with a double row of reddish orange knobs behind the head, and smaller yellow knobs on the abdomen.
Where/When: Feeds on many trees and shrubs, including apple, alder, ash, birch, boxelder, cherry, dogwood, elm, hawthorn, lilac, linden, maple, oak, plum, poplar, willow, viburnum. Present July through September.
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