Juniper Hairstreak Revisited


Juniper Hairstreak (Callophrys gryneus) is native to most of North America. Once thought to be two separate species, residents of eastern North America and western North America are now considered to be just one species.

As butterflies, adult Juniper Hairstreaks seek the nectar of many flowers such as Queen Anne’s Lace, Winter Cress, Common Milkweed, Butterfly Weed, White Sweetclover and many more. Here in the Blue Ridge Mountains, males looking for females hang out on Eastern Red Cedars, their host plant in this area. Want to find some Juniper Hairstreaks? Try shaking some branches of ERCs. You might just shake some free. Eggs are laid on the tips of the leaves the Eastern Red Cedar. After emerging from their eggs, the caterpillars will eat the leaves.

Juniper Hairstreaks are little butterflies, generally measuring in with a wingspan of 1 to 1.25 inches. The above photo might help you visualize the size with a Carpenter Bee in the image. Yes, a good bit of brown, and tiny but not to be confused with a moth!