38a (37a).    Body covered with scales; beak usually in the form of a coiled tube; antennae long

                   and with many segments [wingless moths]......................................................Lepidoptera…...227

 

 

38b.    Body not covered with scales; beak not coiled; antennae variable, but often short, with 3 or

           less segments [wingless flies]......................................................................................Diptera.………..88