Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1055384

Rocky Mountain Dotted-Blue
Euphilotes ancilla

Observation date: July 10, 2015
Submitted by: ncrosbyrd
Specimen type: Photograph
Observation notes: None.
Status: Resident
Verified by: mikefisher
Verified date: November 22, 2015
Coordinator notes: I can see why you thought this was a square-spotted blue but that species does not occur in the Rocky Mts. As a collector this is a "keeper" because it is aberrant in its markings on the underside. These tend to be quite uncommon, usually rare in nature and as such they are great novelties in a collection. You can compare this male to the underside of a normal Rocky Mountain Dotted Blue on the website or butterfliesofamerica.org. Mike
Checklist region(s): United States, Colorado, Gunnison County