Reared from Silphium terebinthinaceum in ~20 yr-old mesic tallgrass prairie restoration. Collected on 6/30/22, pupated on or just before 8/15/22; one eclosed night of 09/15/22; the other eclosed night of 09/17/22 (see freshly emerged individual). All captive observations marked casual but can be found in the group observations field.