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The Coleoptera, or beetles, includes many commonly encountered insects such as ladybird beetles (family Coccinellidae), click beetles (Elateridae), scarabs (Scarabaeidae), and fireflies (Lampyridae). They live throughout the world (except Antarctica), but are most speciose in the tropics.
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tolweb.org/tree?group=Coleoptera&contgroup=Endopterygot...
tolweb.org/tree?group=Coleoptera&contgroup=Endopterygota
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Coleoptera means "sheathed wing;" beetles have two pairs of wings, but the first pair has been enlarged and thickened into a pair of hard sheaths, or elytra, that cover the delicate hind wings. Because the elytra are fairly hard structures, beetles have a better fossil record than many other insect groups do;
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www.ucmp.berkeley.edu/arthropoda/uniramia/coleoptera.ht...
www.ucmp.berkeley.edu/arthropoda/uniramia/coleoptera.html
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Beetles or Coleoptera (scientific Latin name) are the order including the largest number of species not only in the class of insects (Insecta), but also in the entire animal kingdom (Animalia). Not less than a quarter of all animal species on our planet are beetles.
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www.zin.ru/Animalia/Coleoptera/eng/index.htm
www.zin.ru/Animalia/Coleoptera/eng/index.htm
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Beetles, the insect order Coleoptera, are one of the dominant forms of life on earth. One of every five described species of all animals or plants is a beetle! Various species live in nearly every habitat except the open sea, and for every possible kind of food, there's probably at least one beetle species that eats it.
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Beetle - Wikipedia, the free encyclopedia
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Beetles are the group of insects with the largest number of known species. They are classified in the order Coleoptera (pronounced /ˌkoʊliˈɒptərə/ ; from Greek , koleos , "sheath"; and , p...
en.wikipedia.org/wiki/Beetle
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What do they look like? ... Beetles are like all insects, they have a head, thorax, and abdomen, and six legs. Their bodies tend to be very solid and tough. They have chewing mouthparts and often have powerful jaws. ... Adult beetles have modified wings: the first pair of wings is small and very hard, and acts as a...
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www.biokids.umich.edu/critters/Coleoptera/
www.biokids.umich.edu/critters/Coleoptera/
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The Coleoptera have undergone A LOT of recent taxonomic changes, as reflected in American Beetles. Many groups that were once at family rank are now considered subfamilies and vice versa. ... Tree of Life--Coleoptera--overview of characteristics and classification with many references and links to related sites...
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bugguide.net/node/view/60
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Descriptors: economic entomology, pest assessment control and management, population genetics and studies, terrestrial ecology, Coleoptera, Ips typographus, Pityogenes chalcographus, Picea abies, sperm, reproductive system, polyploidy, spermatozoa, methods and equipment, light microscopy, imaging and microscopy...
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www.nal.usda.gov/awic/pubs/Labinsects/Coleoptera.htm
www.nal.usda.gov/awic/pubs/Labinsects/Coleoptera.htm
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We hope you enjoy viewing these images. They may be reproduced for personal, non-commercial use. Please do not link an image from our site to a graphic tag on your page. All images are copyrighted by the photographer and are used here with permission. ... Coleoptera (Beetles)
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insects.ummz.lsa.umich.edu/images/Coleoptera/index.html
insects.ummz.lsa.umich.edu/images/Coleoptera/index.html
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