Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1390269

Western White
Pontia occidentalis

Observation date: July 19, 2024
Submitted by: Robert Gorman
Specimen type: Photograph
Observation notes: On small hilltop fighting anything that would fly by and then stopping for a drink. warm day slight breeze sunny.
Status: Resident
Verified by: James Steen
Verified date: August 09, 2024
Coordinator notes: Between this species and Pontia protodice, it can be tricky to separate them both in appearance, needing at times location and elevation to help. I used to catch Pontia occidentalis in Kern County CA, east slope of the Sierra's. This specimen is pretty fresh and sighted at nearly 9000ft so I'm confident it is Pontia occidentalis, a female. Thanks, JAMES STEEN
Checklist region(s): United States, Utah, Rich County