Based on 1,818 research-grade iNaturalist observations in Oregon, Mylitta Crescent is most often recorded in July; in Oregon it behaves like a summer visitor / breeder. It ranks #8 among butterflies recorded in the state in our data.
Phyciodes mylitta
Mylitta Crescent in Oregon 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 Oregon in July

California Tortoiseshell

Western Tiger Swallowtail
Lorquin's Admiral

Snowberry Checkerspot

Gray Hairstreak

Clodius Parnassian
Woodland Skipper

Painted Lady
Places to look in Oregon
National ForestWillamette National Forest
Mount Hood National Forest
National ForestDeschutes National Forest
Hoyt Arboretum
Leach Botanical Garden
Umatilla National Forest
FAQ
When does Mylitta Crescent appear in Oregon?
Mainly April–September, with the most records in July.
How common is Mylitta Crescent in Oregon?
It ranks #8 by number of iNaturalist observations among butterflies in Oregon (1,818 records in our sample).