Cicada nimph's exoskeleton

Adult cicadas can be encountered in summer feeding on sap from trees or shrubs, with their mouthparts well adapted for piercing and sucking.
Only males produce their well-known calling song, a clicking sound caused by the contraction and relaxation of abdominal membranes (tymbal). This song has the function of sexual attraction for females. Usually males sing in aggregations of many individuals on sunny tree branches. When the males are approached by the females, the courtship takes place, in which cicadas repeatedly hug and touch each other with their legs. At the end of this process they mate in the same place.
The adult cicadas lay their eggs in the summer, which will hatch in late summer or autumn. While their lifespan as adults lasts only about a month and a half for breeding, the larvae will live for several years underground, feeding on juices of plant roots.