Callophrys niphon, the eastern pine elfin, is a species of Lycaenidae that is native to North America.

[2] There is one flight from March to April in the south, while it occurs between mid-May and early June in the north.

Chrysalids hibernate in loosely formed cocoons beneath litter below the plant.

[2] They range across most of the eastern United States and the southern parts of the provinces of Canada.

[2] Within this range they tend to sandy areas with pine trees.