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Digital Guide to Moth Identification

Hesperiidae
770031.103894.1Urbanus viterboana – (Ehrmann, 1907)
Distribution Data for Urbanus viterboana
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Taxonomic Notes: Urbanus viterboana (Ehrmann, 1907) is now recognized within the North American fauna; first US record by Michael A. Rickard" Date: 2010, Illustrated Lists of American Butterflies, accessed 5/1/2017.
References

Moth Photographers Group  at the  Mississippi Entomological Museum  at the  Mississippi State University

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