Fig. 1.

The effects of the removal of the corpora allata from fifth instar Manduca larvae on their growth rates and the timing of the formation of their leg imaginal primordia (yellow circles) after starvation for various periods. Larvae were starved from the beginning of the fifth larval instar for the durations indicated by the horizontal bars, and then given their standard diet and tracked until they started wandering (W) or initiated a supernumerary larval molt. (A) Control larvae. Groups that underwent a larval molt were those starved for 6 d and the subgroups for the 4- and 5-d treatments are represented by the small symbols and dashed lines. (B) CAX larvae that lacked JH during and after the starvation period. Groups represent five larvae per group. Symbols show the mean ± SEM for the various days. In cases in which no variance is shown, it is less than the height of the symbol. Critical weight estimate comes from ref. 7.