Utetheisa Hübner. Genitalic morphology (Pease 1968, DaCosta 2007) and DNA barcode data (BCS, unpubl. data) show that bella and ornatrix are forms of the same variable species.

• Pease RW (1968) Evolution and hybridization in the Utetheisa ornatrix complex. I. Inter- and intrapopulation variation and its relation to hybridization. Evolution 22: 719-735.
• DaCosta MA (2007) Phylogenetic studies of Utetheisa Hübner, the rattlebox moth, and other arctiines (Lepidoptera: Noctuoidea: Arctiidae). PhD dissertation, University of Minnesota.