Caterpillars of Eastern Forests
Zebra Swallowtail (Graphium marcellus)
Hump-backed, pale green with pale blue, yellow, and black rings running over top of body. Dorsum of first abdominal segment with thickened black ring followed by yellow ring. Abdominal segments with anterior yellow ring followed by 2 to 3 pale green to white rings that end at about level of spiracles—these edged with black in some individuals. Black occasionally predominates. Head small, held beneath. Food: pawpaws. Caterpillar: May to November; 3 or more generations in South, 2 in North.
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