Northern Prairie Wildlife Research Center
Cylindrical reddish brown stick mimic without pronounced swellings. Head flattened; vertex shallowly cleft and angulate; mottling occasionally forming diffuse band to either side of triangle, cheeks paler. Dorsum of first abdominal segment often with subdorsal stripes; abdominal setae on tiny warts which may be lightly colored; venter of first 2 or 3 abdominal segments with setae borne from minute warts; fifth abdominal segment with small, paired, darkened warts. Food: many shrubs and trees, including conifers. Caterpillar: May to October; 2 generations in North.