Nectar: Butterfly Bush, Autumn Sage.
Host: Passion-vine, especially maypop.
Habitat: Deserts, woodland edges, brushy fields, & city gardens.
These images were taken near Lake Waco, less than 5 miles from the Wetlands, and it is possible that other Fritillary Butterflies could have been seen in that area. Based upon online identification sources and other identifiers, this specimen is probably a Gulf Fritillary. Identified by Mark Klym, Texas Parks & Wildlife.
Caterpillar Photo: Allen from Caterpillars in the Field and Garden.
Gulf Fritillary Butterfly Photos: Courtesy of SP Johnson.