In 1863, Mr. W. H. Edwards described a male Hesperian from Michigan under the name of Hesperia Pontiac, closely resembling the species figured by Boisduval and LeConte, under the name of Arpa, as well as the larger Florida species Edwards subsequently described under the name of Pilatka. In the same paper in which Pontiac was described and immediately preceding it, he described, also from Michigan, a female under the name of Hesperia conspicua.