Northern Prairie Wildlife Research Center
Green or brown, with 7 broad oblique stripes fusing into subdorsal stripe that runs to horn. Head with pale medial and lateral bands. Last thoracic and first abdominal segments greatly swollen, and orange spiracles marked with white at either end. Closely similar to azalea sphinx (D. pholus). Food: grapes, Virginia creeper, and viburnums. Caterpillar: April to November; 2 or more generations in South, 1 in North.