Northern Prairie Wildlife Research Center
Rather undistinguished, brownish with 8 to 10 oblique brown lines. Head angulate, dark medially and paler green laterally. Dorsum of thorax with black subdorsal stripes. Oblique lateral stripes edged below with paler tans and browns. Top of midabdominal prolegs with dark band. Horn smallish, uniformly dark. Anal plate long and triangular, extending beyond prolegs. May hide at base of plant by day. Food: grape family and peppers. Caterpillar: April to November; 2 generations in South, 1 in North.