Based on 2,691 research-grade iNaturalist observations in Texas, Spicebush Swallowtail is most often recorded in August; in Texas it behaves like a summer visitor / breeder. It ranks #61 among butterflies recorded in the state in our data.
Papilio troilus
Spicebush Swallowtail in Texas 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 Texas in August
Gulf Fritillary
Queen
Pipevine Swallowtail
Bordered Patch
Monarch
Hackberry Emperor
Fiery Skipper
Clouded Skipper
Places to look in Texas
State ParkDinosaur Valley State Park
Botanical GardenSan Antonio Botanical Garden
State ParkGarner State Park
State ParkBrazos Bend State Park
State ParkPedernales Falls State Park
State ParkEnchanted Rock State Natural Area
FAQ
When does Spicebush Swallowtail appear in Texas?
Mainly March–September, with the most records in August.
How common is Spicebush Swallowtail in Texas?
It ranks #61 by number of iNaturalist observations among butterflies in Texas (2,691 records in our sample).