Tiny nymph at left, labeled D, with few markings. Much larger nymph at right, labeled E, more detailed, with wing buds behind head. Black and white art.

Figure 20D–E. Melon aphid nymphs: early stage (D) and late stage with wing buds (E).

Tiny nymph at left, labeled D, with few markings. Much larger nymph at right, labeled E, more detailed, with wing buds behind head. Black and white art.

Illustrations by USDA.