About Palthis angulalis Hübner, 1796
Palthis angulalis, commonly known as the dark-spotted palthis, is a moth species belonging to the family Erebidae. Jacob Hübner first described this species in 1796. This moth has a distribution ranging from Newfoundland west to coastal British Columbia, and extends south to Florida and Texas. The wingspan of adult Palthis angulalis measures between 20 and 26 mm. In Alberta, adult moths are active from May to August. Across most of the eastern portion of the species' range, there are two generations per year. From Missouri southward, this species produces three or more generations annually. The larvae of Palthis angulalis feed on a wide variety of plants, including forbs, woody shrubs, and multiple tree and shrub species: alder, aster, basswood, birch, chestnut, fir, sweetgale, goldenrod, ninebark, rhododendron, scrub oak, and spruce.