Although the bulk of the Hesperiidae may form a well-supported monophyletic group, its subdivision is more problem-
atic. Traditionally (following Evans, 1937e1955), it has been divided into two groups, Pyrginae (inc. Pyrrhopyginae) and Tra-
pezitinaeþHesperiinae (incl. Megathyminae), which, with few exceptions, differ in food plant choice, the Pyrginae feeding on
dicotyledonous plants, the other group on monocotyledons. There