Virbia marginata. This species was first reported from the US by Ferguson & Opler (2006), and also included in a recent review of the genus by Zaspel et al. (2008). Comparison of specimens from AZ and NM with nominate Guatemala marginata shows that the US species is not marginata.

• Ferguson DC, Opler PA (2006) Check list of the Arctiidae (Lepidoptera: Insecta) of the continental United States and Canada. Zootaxa 1299: 1-33.
• Zaspel JM, Branham MA (2008) World checklist of the tribe Calpini (Lepidoptera: Noctuidae: Calpinae). Insecta Mundi 0047: 1-15.