Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1413384

European Common Blue
Polyommatus icarus

Observation date: August 30, 2025
Date notes: Females seen many times in August
Submitted by: Fosterro
Specimen type: Photograph
Observation notes: Hot and sunny, incredibly hot summer Not easy to photograph. Female seen as well but haven’t got a picture. Property has ~600 plants (500 specifically to attract bees and butterflies)
Status: Resident
Verified by: jmgesell
Verified date: August 31, 2025
Coordinator notes: This is actually an introduced species from Europe, and is now well established in several Canadian locations. It was first spotted in 2007 near Mirabel Airport near Montreal, and is now commonly found around Toronto, Montreal, Quebec City, and was recently discovered on Nova Scotia. It’s also expanded southward from Montreal into northern New York and Vermont. -Jeff Gesell
Checklist region(s): Canada, Ontario