We lack accurate data on the distribution of tropical butterflies in the United States, and even in Mexico and Central America. Several factors contribute to this condition.
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Freeman, H. A.
"Notes On Some Tropical American Skippers (Lepidoptera, Rhopalocera, Hesperiidae),"
Field and Laboratory: Vol. 17
Available at: https://scholar.smu.edu/fieldandlab/vol17/iss3/1