1 Kevin Moses It is now 25 years since the study of the development
of the compound eye in Drosophila really began with a classic paper
(Ready et al. 1976). In 1864, August Weismann published a monograph
on the development of Diptera and included some beautiful drawings
of the developing imaginal discs (Weismann 1864). One of these is
the first description of the third instar eye disc in which
Weismann drew a vertical line separating a posterior domain... more...