Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1403949

Sylvan Hairstreak
Satyrium sylvinus

Observation date: June 15, 2025
Submitted by: Zencoyote
Specimen type: Photograph
Observation notes: Multiple individuals seen along the edge of the trail, perched a meter or so off the ground, occasionally flying in short loops to ward off perceived competitors. Preferred perches seem to include Mulefat or Coyote Brush. They return to this location every year about this time. Sharing space with Lorquin’s Admiral. Weather mid 70s, clear, slight breeze.
Status: Resident
Verified by: Ken Davenport
Verified date: June 17, 2025
Coordinator notes: None.
Checklist region(s): United States, California, San Diego County