Annual Cicadas (Dog-Day Cicadas)
Adults have black, green or olive-patterned bodies, often with a whitish cast on the underside, black eyes and 4 membranous wings with a black or green tinge. They crawl and fly, but do not jump. The mouthparts, tucked beneath the head, are like a small, sharp straw. The antennae are short, and there are 3 ocelli (eyespots) in addition to the 2 larger, compound eyes. Compared to periodical (13- or 17-year) cicadas, “annual” cicadas are larger. Adult males have a sound-producing organ that emits a loud, raspy call used to attract females. Different species, such as the “scissor grinder” and “buzz saw” cicadas, have distinctively different types of calls and call at different times of day. Adult females have a curved ovipositor at the lower end of the abdomen, used to insert eggs into slits in twigs. Nymphs are tan or brown, wingless, stout, with the front pair of legs specialized for burrowing in soil and for clinging onto trees as they undergo their final molt into adults.