There seems to be some misapprehension in regard to the validity of our species of Pamphila, and inasmuch as I have been studying our Hesperidæ for some years past, I thought some remarks on the subject would not be inappropriate. We now have in this genus ninety-six species as they would apper in a list according to the generally accepted specific values. With the exception of about two groups, I consider the species remarkably well defined and constant, and if you one become thoroughly familiar with them, there is not the slighest difficulty in separating any of them at sight.