The terrific digital imagery below, is part of "Define Cicada" editorial which is labeled within "Cicada Images", "Black Cicada", "Cicada Swarm" and "Cicada Australia".
Define Cicada: Cicada Repellent - Almost all the explanatory dictionaries define cicada as following: This is any of various insects belonging to the family of Cicadidae. The insect has a broad head, prominent compound eyes, and membranous wings. Only male cicadas possess a pair of resonating organs, which produce that characteristic droning, high-pitched sound. A cicada is also called cicala.
Different species are easily distinguished not only by song, but behavior and appearance. For example, periodic cicadas occur chronologically and geographically, as well as in large numbers and in regular cycles. These are the well-known 17-year-old & 13-year-old cicadas. Their larvae or nymphs remain in the ground for 17 or 13 years respectively, feeding on root juices and then emerging to live above the ground within a single week. The key thing is that during this time billions of insects may burst out of the earth, swarm over the East Coast and wreak havoc along the way.
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