Nymphs This insect has four nymphal stages separated by molts. Nymphs resemble adults except for their smaller size. They do not have wings. Adults Adult melon aphids are soft bodied insects. Color varies from yellowish green, to brownish green, to almost black.
Adults are smaller and paler in high temperatures.
Adult females produce 8-22 young per day. Adult aphids generally remain wingless until high population densities are reached. A high population density induces the production of winged individuals which can migrate to new food sources. Heavy rainfall decreases population sizes. There are several beneficial insects that help to control aphid populations through parasitism and predation.