References
* Hodges, Ronald W., et al., eds. (1983). ''Check List of the Lepidoptera of America North of Mexico'', xxiv + 284. * Opler, Paul A. (1999). ''A Field Guide to Western Butterflies, Second Edition'', xiv + 540. * Pelham, Jonathan P. (2008). "A catalogue of the butterflies of the United States and Canada with a complete bibliography of the descriptive and systematic literature". ''Journal of Research on the Lepidoptera'', vol. 40, xiv + 658.Further reading
* Arnett, Ross H. (2000). ''American Insects: A Handbook of the Insects of America North of Mexico''. CRC Press. Lon {{hesperiinae-stub