Based on 15,143 research-grade iNaturalist observations in California, Acmon Blue is most often recorded in July; in California it behaves like a summer visitor / breeder. It ranks #13 among butterflies recorded in the state in our data.
Icaricia acmon
Acmon Blue in California by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in California in July
Monarch
Gray Buckeye
Fiery Skipper
Small White
Western Tiger Swallowtail
Gray Hairstreak
Anise Swallowtail
Marine Blue
Places to look in California
Botanical GardenThe Huntington Library, Art Museum, and Botanical Gardens
State ParkHearst Castle
Botanical GardenSan Francisco Botanical Garden
State ParkAnza-Borrego Desert State Park
National ForestAngeles National Forest
National ForestSequoia National Forest
FAQ
When does Acmon Blue appear in California?
Mainly April–October, with the most records in July.
How common is Acmon Blue in California?
It ranks #13 by number of iNaturalist observations among butterflies in California (15,143 records in our sample).