The eversion and differentiation of Drosophila melanogaster leg and wing imaginal discs cultured in vitro with an optimal concentration of beta-ecdysone.

The stages of the eversion and differentiation of prothoracic leg and wing discs of Drosophila melanogaster, in Shields and Sang's medium 3, are described. The range of specific imaginal structures produced, including patterns of sensilla trichodea and sensilla campaniformia, are noted, and the relationship of these structures to those differentiated in situ is discussed.