A widely distributed family, with but a few species in our region; the best known is Bedellia somnulentella, a leafminer of Convolvulaceae. The larva has remarkably long prolegs. The final mines are large, very transparant and virtually free of frass. The larva is able to leave its mine and restart elsewhere.
The status of the family is controversial. Davis (1987a) places the genus Bedellia, together with Bucculatrix, in the family Lyonetiidae.