About Panthea acronyctoides Walker, 1861
Panthea acronyctoides, commonly known as the black zigzag or tufted spruce caterpillar, is a moth species belonging to the family Noctuidae. This species was first formally described by Francis Walker in 1861. It is native to North America, where its distribution ranges from Newfoundland to British Columbia and the adjacent northern United States. In western North America, its range extends south to Colorado; in eastern North America, it reaches south to New England and Kentucky. Adults of this species have a wingspan measuring 30 to 35 mm. The moths are active in flight from May to August, with flight timing varying by location. The larval stage of Panthea acronyctoides feeds on the foliage of balsam fir, eastern hemlock, eastern larch, pines, and spruces.
