traditionally, the hesperiidae were placed in a monotypic superfamily hesperioidea, because they are morphologically distinct from other rhopalocera (butterflies), which mostly belong to the typical butterfly superfamily papilionoidea. the third and rather small butterfly superfamily is the moth-butterflies (hedyloidea), which are restricted to the neotropics, but recent phylogenetic analyses suggest the traditional papilionoidea are paraphyletic, thus the subfamilies should be reorganised to reflect true cladistic relationships.