The Green Comma is a northern comma butterfly with ragged, angular wing edges and a row of green-yellow submarginal spots on the hindwing underside that distinguish it from other commas. It overwinters as an adult in boreal forests. Adults emerge on warm late-winter days and perch on snowbanks to thermoregulate. Its camouflaged underside closely resembles bark.
Best time to see a Green Comma
The best time to see a Green Comma is May–August, when about 72% of U.S. sightings happen, based on 3,438 research-grade iNaturalist observations.
Not certain it is a Green Comma? What bug is this? walks through what to check first and the lookalikes that catch people out.
Recent Green Comma sightings near you
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