Butterflies are a natural monophyletic group , often given the sub-order Rhopalocera , which includes Papilionoidea -LRB- true butterfiles -RRB- , Hesperiidae -LRB- skippers -RRB- , and Hedylidae -LRB- butterfly moths -RRB- .

Butterflies are a natural monophyletic group . Rhopalocera , which includes Papilionoidea -LRB- true butterflies -RRB- , Hesperiidae -LRB- skippers -RRB- , and Hedylidae -LRB- butterfly moths -RRB- .
