cicada


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cicada

(sĭkā`də), large, noise-producing insectinsect,
invertebrate animal of the class Insecta of the phylum Arthropoda. Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates.
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 of the order Homoptera, with a stout body, a wide, blunt head, protruding eyes, and two pairs of membranous wings. The front wings, which are longer than the rear pair, extend beyond the insect's abdomen. Male cicadas have platelike membranes on the thorax, which they vibrate like drum heads, producing a loud, shrill sound. Females of most species are mute. Characteristic songs are produced by members of different species; each also produces a noise indicating irritation, and some have special courtship songs.

There are about 2,000 cicada species distributed throughout the tropical and temperate regions of the world; they are most numerous in Asia and Australia. There are about 180 species in North America; adults of these species range from approximately 1 to 2 in. (2.5–5 cm) in length. The periodical cicadas (Magicicada species), found in the eastern half of the continent, have the longest known life cycles of any insect. Because of their periodic appearance they are often called locusts, although they are not related to true locustslocust,
in zoology, name for certain migratory members of the short-horned grasshopper family (Acrididae). Like other members of this family, locusts have antennae shorter than their bodies, song-producing organs on the forewings and hind legs, and hind legs well developed for
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.

Their life cycle takes 17 years in northern species (the so-called 17-year locusts) and 13 years in southern species; the two types overlap in parts of the United States. The female deposits her eggs in slits that she cuts in young twigs. In about six weeks the wingless, scaly larvae, or nymphs, drop from the tree and burrow into the ground, where they remain for 13 or 17 years, feeding on juices sucked from roots. The nymphs molt periodically as they grow; finally the full-grown nymphs emerge at night, climb tree trunks and fences, and shed their last larval skin. The winged adults, which generally emerge together in large numbers, live for about one week. Different broods mature at regular intervals, so that at least one colony is conspicuous in some part of the United States each year, and even in a given locality a brood may appear every few years.

Other North American cicadas (Tibicen species and others) are known as dog-day cicadas, or harvest flies, because the adults appear in late summer. Their life cycle is thought to be similar to that of the periodical cicadas, but in most species it is completed in two years.

Cicada larvae do little damage, but when adults appear in large numbers their egg-laying may damage young trees. Cicadas are sometimes kept for their song in Asia, as they were in ancient Greece. They are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
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, class Insecta, order Homoptera, family Cicadidae.

cicada

symbol of eternal life. [Chinese Folklore: Jobes, 338]

cicada

symbol of talkativeness because of its constant, strident noise. [Folklore: Jobes, 338]

cicada

, cicala
any large broad insect of the homopterous family Cicadidae, most common in warm regions. Cicadas have membranous wings and the males produce a high-pitched drone by vibration of a pair of drumlike abdominal organs
References in periodicals archive ?
From the treetops male cicadas scream their dusk chorus hoping to attract mates.
New records of cicadas from Mexico (Hemiptera: Cicadoidea: Cicadidae).
Even for insects, cicadas are odd, waiting out their long lives in burrows until this sudden flare, when they get to set up a clatter by vibrating plates on their exoskeletons.
Responses of free-living cicadas (Homoptera: Cicadidae) to broadcasts of cicada songs.
Considering the two kinds of insects snorting mechanism (KONG &WU, 2009; Ramasubramanian et al., 2008; Daniel & Kingsolver, 1983), this paper mainly choose fascicle as the main object of observation which answers for pierce the host organization function, such as mosquitoes lower jaw and cicadas upper jaw.
All sites were chosen because they exhibited high levels of cicada emergence according to local observers.
Periodical cicadas (Magicicada spp.) exhibit some of the most extreme life histories of any insect, with large populations of adults appearing only once every 13 or 17 years.
The sound of cicadas always seems to sneak up on me.
NASA is reportedly looking into how these Cicada drones could be helpful to meteorologists, as they contain temperature, wind speed, and air pressure sensors.
Some had questioned village shopkeepers about how to get their hands on chemical weapons to quieten the racket made by the male cicadas as they "sing" out in search of a mate.
Others are also looking at the insect kingdom but with a very different approach: taking cicadas as their research subjects, Australian scientists have discovered that the wings of these noisy critters are highly resistant to bacteria not because of some chemical they excrete but because of their very design.