Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1130904

California Tortoiseshell
Nymphalis californica

Observation date: July 29, 2017
Submitted by: PDunwiddie
Specimen type: Photograph
Observation notes: This species was by far the most common butterfly around Mt Adams (all sides) from 5000' to over 8300'. One exceptional group of several hundred was basking in late afternoon sun on wet mud just below an alpine glacier at 8300', far above treeline. A truly spectacular irruption. Individuals closed wings when disturbed, with the entire group taking wing at once.
Status: Resident
Verified by: davidwdroppers
Verified date: August 03, 2017
Coordinator notes: None.
Checklist region(s): Yakima County, United States, Washington