Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 979505

Western Tent Caterpillar Moth
Malacosoma californicum

Observation date: June 16, 2014
Submitted by: Kching
Specimen type: Photograph
Observation notes: This group of caterpillars was on my columnar aspen tree. This was taken approx. at 9:00 pm. The weather was overcast but no rain, 18 Celsius. I was just curious about the species and also why they were all grouped together - like they were almost in a sleeping state.
Status: Resident
Verified by: jwileyrains
Verified date: January 26, 2022
Coordinator notes: None.
Checklist region(s): Canada, Alberta