Tag Archives: Juniper Hairstreak (Callophrys gryneus)

A Juniper Hairstreak

July 17, 2026

Rare creatures around the world. Green in the world of butterflies is one of the scarcest of colors. These greens are created by way of using structural coloration and natural pigments. Wings of the green butterfly are covered with small prism like scales bending and reflecting light, all colors except green get cancelled out. This is structural coloration.

The Juniper Hairstreak (Callophrys gryneus) is one of the very few green butterflies native to Virginia. A tiny butterfly with a wingspan of just one inch. Its single host plant is the Eastern Redcedar (Juniperus virginiana).

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A Green Butterfly

May 30, 2025

Most unusual to see a green butterfly. I’m not sure there are any that are native to Virginia except for this one, a Juniper Hairstreak (Callophrys gryneus). It’s actually native to most of the continental United States, parts of southern Canada, and northern Mexico. Here in Virginia its host plant is the Eastern Red Cedar (Juniperus virginana).

A tiny thing with a wing span of just an inch. But it’s GREEN!

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