
Based on 11,726 research-grade iNaturalist observations in California, Marine Blue is most often recorded in July; in California it behaves like a summer visitor / breeder. It ranks #15 among butterflies recorded in the state in our data.
Leptotes marina
Marine 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

Acmon Blue

Anise Swallowtail
Places to look in California
Botanical GardenThe Huntington Library, Art Museum, and Botanical Gardens
State ParkHearst Castle
Botanical GardenSan Francisco Botanical Garden
Anza-Borrego Desert State Park
Angeles National Forest
National ForestSequoia National Forest
FAQ
When does Marine Blue appear in California?
Mainly April–October, with the most records in July.
How common is Marine Blue in California?
It ranks #15 by number of iNaturalist observations among butterflies in California (11,726 records in our sample).