About Strymon caryaevorus McDunnough, 1942
Satyrium caryaevorus, commonly known as the hickory hairstreak, is a butterfly species belonging to the family Lycaenidae. This species is found in eastern North America. Its range extends from southern Ontario westward to Minnesota and Iowa, and south along the Appalachian Mountains to eastern Tennessee. Reported wingspan measurements for this butterfly fall into two ranges: 22–28 mm and 29–35 mm. The hindwing of the hickory hairstreak has a single tail. Adult butterflies are on wing from June to August, and there is one generation produced per year. Adults feed on nectar from a variety of flowers, including common milkweed, dogbane, New Jersey tea, staghorn sumac, and white sweet clover. The larvae of this species feed on the leaves of several plant types: bitternut hickory (Carya cordiformis), butternut (Juglans cinerea), red oak (Quercus rubra), white ash (Fraxinus americana), and hawthorn (Crataegus species). Satyrium caryaevorus overwinters in the egg stage. The MONA (Moths of North America) and Hodges number assigned to this species is 4283.
