Figure 4.

Effect of [His⁷] corazonin in peanut oil (filled bars), 10% aqueous ethanol (stippled bar), and water (open bar) on the pigmentation of albino locusts in L. migratoria. Albino locusts were injected at the beginning of the fourth instar, and their body color was checked 4 days later, as in Fig. 3. Columns indicate means (n = 10 each).