beetle

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beetle,

common name for insectsinsect,
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 Coleoptera, which, with more than 300,000 described species, is the largest of the insect orders. Beetles have chewing mouthparts and well-developed antennae. They are characterized by a front pair of hard, opaque, waterproof wings called elytra, which usually meet in a straight line down the middle of the back. The elytra cover the rear pair of membranous flight wings, protecting them and the body from mechanical damage and desiccation. Beetles are poor flyers compared with many other insects, but they are well adapted for surviving rigorous conditions. They are found everywhere except in oceans and near the poles, and they occupy nearly every kind of habitat. Most are terrestrial, but some are underground tunnelers and some live in water. These water beetleswater beetle,
name for aquatic beetles of several families. They should not be confused with water bugs, which are true bugs (order Hemiptera). The predaceous diving beetles (family Dytiscidae) are a large group, widespread in quiet streams and ponds.
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 are often confused with water bugs, but the latter all have sucking mouthparts. Beetles range in size from under 1-32 in. (1 mm) to over 6 in. (15 cm) long; tropical species are the largest. Most are dull, but members of several beetle families are brilliantly colored, some with a metallic or iridescent sheen. The majority of beetles are plant eaters, but there are also many predators and scavengers and a few parasites. Many beetles are highly destructive pests of crops and gardens (e.g., Japanese beetleJapanese beetle,
common name for a destructive beetle, Popillia japonica, of the scarab beetle family. Accidentally imported to the United States from Japan, it was first discovered in New Jersey in 1916 and is now widespread in the northeastern states, where it is a
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, potato beetlepotato beetle,
name for two beetles of the leaf beetle family and for two of the blister beetle family, all destructive to the potato plant and its relatives. Most notorious is the Colorado potato beetle, or potato bug (Leptinotarsa decemlineata
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, boll weevilboll weevil
or cotton boll weevil
, cotton-eating weevil, or snout beetle, Anthonomus grandis. Probably of Mexican or Central American origin, it appeared in Texas about 1892 and spread to most cotton-growing regions of the United States.
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), but others are beneficial predators of harmful insects (e.g., ladybird beetlesladybird beetle
or ladybug,
member of a cosmopolitan beetle family with over 4,000 species, including 350 species in the United States. Ladybird beetles are mostly under 1-4 in. (6 mm) long and are nearly hemispherical in shape, with very short legs.
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). The largest of the many beetle families is the scarab beetlescarab beetle
or scarab,
name for members of a large family of heavy-bodied, oval beetles (the Scarabaeidae), with about 30,000 species distributed throughout most of the world and over 1,200 in North America.
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 family, with over 20,000 species; among these are the dung beetles, which are invaluable scavengers. Weevilsweevil,
common name for certain beetles of the snout beetle family (Curculionidae), small, usually dull-colored, hard-bodied insects. The mouthparts of snout beetles are modified into down-curved snouts, or beaks, adapted for boring into plants; the jaws are at the end of the
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 are plant-eating beetles with mouthparts elongated into snouts bearing jaws at their ends. The firefliesfirefly
or lightning bug,
small, luminescent, carnivorous beetle of the family Lampyridae. Fireflies are well represented in temperate regions, although the majority of species are tropical and subtropical.
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 are luminescent beetles. Blister beetlesblister beetle,
common name for certain soft-bodied, usually black or brown, mostly elongate and cylindrical beetles belonging to the family Meloidae. Blister beetles are common insects found feeding on the flowers and foliage of various plants. Occasionally some, e.g.
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, including the so-called Spanish fly, produce irritating secretions. Beetles 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 Coleoptera.

beetle

[′bēd·əl]
(engineering)
(invertebrate zoology)
The common name given to members of the insect order Coleoptera.
(mining engineering)
A powerful, cable-hauled propulsion unit, operated under remote control, for moving a train of wagons at the mine surface.

beetle

A heavy mallet or rammer; used for driving stones into pavement, for driving wedges, etc.; a maul.

beetle

1
1. any insect of the order Coleoptera, having biting mouthparts and forewings modified to form shell-like protective elytra
2. a game played with dice in which the players draw or assemble a beetle-shaped form

beetle

2
1. a heavy hand tool, usually made of wood, used for ramming, pounding, or beating
2. a machine used to finish cloth by stamping it with wooden hammers
References in classic literature ?
For this reason I swung the beetle, and for this reason I let it fall it from the tree.
Mountain pine beetles pose a serious threat to Albertas forests and if left unmanaged could spread eastward across Canadas boreal region.
Sugarcane beetles emerge at 2 distinct times of the year and cause damage to the turf by consuming aboveground plant tissue and by tunneling through the soil profile, causing ridges in the turf surface.
And it was through their mutual love of VW Beetles that romance blossomed between Dave and his now-wife Linda, a retired teacher.
GARDENS AND BARNYARDS attract a wide variety of beetles, some beautiful, others downright ugly.
Claims that rhino beetles are worth large sums of money have sparked an interest among the people.
Hungry beetles spurn crops bearing the insects' genetic material, scientists report in the Feb.
Scientists from South Africa and Sweden have published findings showing the link between dung beetles and the spray of stars which comprises our galaxy.
Few days go by without seeing an article addressing some issue related to bark beetles.
Traps have been set up near the Wachusett Reservoir along Routes 110 and 70 in Sterling and Clinton to monitor for Asian longhorned beetles, which have been detected in nearby Boylston and West Boylston.
He casts his net more widely in one chapter where he waxes eloquently on beetles in general.
I keep hearing about how pine beetles are killing whole sections of forests.