Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1302216

'Rustic' Arctic Blue
Plebejus glandon rusticus

Observation date: July 21, 2021
Submitted by: Cascade Colors
Specimen type: Photograph
Observation notes: Around 11,500 feet elevation
Status: Resident
Verified by: mikefisher
Verified date: August 29, 2021
Coordinator notes: Your idea that it looks like a Rustic Blue is correct...a female with weak marking on the upper wings. This is the only blue in the high mountains on which the female has a series of spots formed on the upper forewings, sometimes weakly as this one, occasionally much more bold...weaker is much more common. Males are kind of a gray-blue overall on the upper wings as you probably well know. Mike
Checklist region(s): United States, Colorado, Clear Creek County