Simplify the following text for a Grade 11 native English-speaking person.
Original: Exopterygota ( `` external winged forms '' ) develop wings on the outside of their bodies without going through a true pupal stage , though a few have something resembling a pupa ( e.g. , Aleyrodidae ) .
Simplified: Exopterygota ( `` external winged forms '' ) develop wings on the outside of their bodies without going through a true pupal stage , though a few have something resembling a pupa .