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List of largest insects
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List of largest insects : ウィキペディア英語版
List of largest insects

Insects, which are a type of arthropod, are easily the most numerous group of organisms on the planet, with about a million species identified so far. The title of heaviest insect in the world has many rivals, the most frequently crowned of which is the larval stage of the goliath beetle, ''Goliathus goliatus'', the top size of which is at least and . The largest confirmed weight of an adult insect is for a giant weta, ''Deinacrida heteracantha'', although it is likely one of the elephant beetles, ''Megasoma elephas'' and ''Megasoma actaeon'', or goliath beetles, both of which can commonly exceed and , can reach a higher weight.〔
The longest insects are the stick insects, see below.
Representatives of the extinct dragonfly-like order Meganisoptera such as the Carboniferous ''Meganeura monyi'' and the Permian ''Meganeuropsis permiana'' are the largest insect species ever known. These creatures had a wingspan of some and an estimated body weight of over , making them about the size of a crow.
*Cockroaches (Blattodea)
:The largest cockroach is the giant burrowing cockroach (''Macropanesthia rhinoceros''). This species can attain a length of and a weight of .
*Beetles (Coleoptera)
:The beetles are the largest order of organisms on earth, with about 350,000 species so far identified. The most massive species are the ''Goliathus'', ''Megasoma'', and ''Titanus'' beetles already mentioned. The longest species is the Hercules beetle, ''Dynastes hercules'', with a maximum overall length of at least including the very long pronotal horn.
*Earwigs (Dermaptera)
:The largest of the earwigs was the Saint Helena giant earwig, (''Labidura herculeana''), which was up to in length.
*True flies (Diptera)
:The largest species of this huge order is ''Gauromydas heros'', which can reach a length of and a wingspan of . The largest species of crane fly, ''Holorusia brobdignagius'', can attain nearly the same wingspan, but if the legs are extended in front of and behind the body, then an overall length of makes it the longest true fly.〔Carwardine, M. 2008. Animal Records. Sterling Publishing, NY.〕
*Mayflies (Ephemeroptera)
:The largest mayflies are members of the genus ''Proboscidoplocia'' from Madagascar. These insects can reach a length of .
*True bugs (Hemiptera)
:The largest species of this diverse, huge order is a giant water bug, ''Lethocerus maximus''. This species can attain a length of , although it is more slender and less heavy than most other insects of this size (principally the huge beetles).
*Ants, bees, and wasps (Hymenoptera)
:The largest of the ants, and the heaviest species of the order, are the females of ''Dorylus helvolus'', reaching a length of . The ant that averages the largest for the mean size of the whole colony is ''Dinoponera gigantea'', averaging up to . Another ant that is native to Australia, ''Myrmecia brevinoda'', workers are reported to be on average and queens are more than in length.〔Wood, Gerald ''The Guinness Book of Animal Facts and Feats'' (1983) ISBN 978-0-85112-235-9〕
:The largest of the bee species, also in the order Hymenoptera, is ''Megachile pluto'', the females of which can be long, with a 6.3-cm (2.5-in) wingspan.
:The largest wasp is probably the so-called tarantula hawk species ''Pepsis pulszkyi'', at up to long and wingspan, although many other ''Pepsis'' species approach a similar size.

*Termites (Isoptera)
:The largest of the termites is the African species ''Macrotermes bellicosus''. The queen of this species can attain a length of and breadth of ; other adults, though, are about a third of the size.
*Butterflies and moths (Lepidoptera)
:The largest species is probably either the Queen Alexandra's birdwing, ''Ornithoptera alexandrae'', a butterfly, or the Atlas moth, ''Attacus atlas''. Both of these species can exceed a length of , a wingspan of and a weight of 12 g. Their larvae can weigh up to or . However, the white witch, ''Thysania agrippina'', has the longest recorded wingspan of the order, and indeed of any living insect, at up to , though it is exceeded in surface area and mass by both ''Ornithoptera'' and ''Attacus''.
*Praying mantises (Mantodea)
:Giant shield mantids of the genus ''Rhombodera'' can reach lengths of nearly 11cm and are more robust than comparably-sized mantids of other genera (''Tenodera'', ''Hierodula'', ''Sphodromantis'' and ''Plistospilota''.) Some larger species have been known to capture and consume frogs, lizards, mice, small birds, and even snakes. Giant Stick Mantids of the genus ''Toxodera'' and ''Solygia'' can reach lengths of 20 cm, but are more gracile in build than other large mantids.
*Dragonflies and damselflies (Odonata)
:The largest living species of odonate (the order that includes dragonflies and damselflies) is ''Megaloprepus caerulatus'', attaining a size of as much as across the wings and a body length of over . The largest species of dragonfly ever is the extinct ''Meganeura''.
*Grasshoppers, crickets, weta (Orthoptera)
:The largest of this widespread, varied complex of insects is the giant weta, ''Deinacrida heteracantha'', of New Zealand. This formidable insect can weigh over and measure up to nearly , rivaling the huge beetles in size.
:''Deinacrida heteracantha'' or Little Barrier Island giant weta, one specimen weighed an atypical 71g 〔(Weta foto )〕
*Stick insects (Phasmatodea)
:The longest known stick insect is ''Phobaeticus chani'', with one specimen held in the Natural History Museum in London measuring in total length. This measurement is, however, with the front legs fully extended. The body alone still measures . The species with the second-longest body is ''Phobaeticus kirbyi'', which measures up to ,〔Brock, P.D. 1999. ''The amazing world of stick and leaf-insects''. Cravitz Printing Co., Essex, England.〕 while the overall length (from the hind to the front legs) is up to ,〔 and the body weight is up to . The second-longest insect in terms of total length is ''Phobaeticus serratipes'', measuring up to .〔Seow-Choen, F. (1995). The longest insect in the world. ''Malayan Nat.'' 48: 12.〕
*Stoneflies (Plecoptera)
:The largest species of stonefly is ''Pteronarcys californica'', a species favored by fishermen as bait. This species can attain a length of and a wingspan of nearly .
*Booklice (Psocoptera)
:The largest of this order of very small insects is the barklouse of the genus ''Psocus'', the top size of which is about .
*Fleas (Siphonaptera)
:The largest species of flea is ''Hystrichopsylla schefferi''. This parasite, known exclusively from the fur of the mountain beaver, can reach a length of .
*Thrips (Thysanoptera)
:Members of the genus ''Phasmothrips'' are the largest thrips. The maximum size of these species is about .
== References ==


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