Members of this group are typified by having only one pair of wings and a complete type of metamorphosis--egg, larvae, pupa and adult stages in the life cycle (as diagrammed below for the house fly).
(Members of this group; are typified; ) (Members of this group; by having; only one pair of wings and a complete type of metamorphosis)
Members of this group Members of this group
are typified by having
only one pair of wings and a complete type of metamorphosis