The largest of bees is Megachile pluto, the females of which can be 3.8 cm ( 1 + 1⁄ 2 in) long, with a 6.3-cm (2.5-in) wingspan. Another ant that is native to Australia, Myrmecia brevinoda, workers are reported to be 3.7 cm (1.5 in) on average and queens are more than 4 cm (1.6 in) in length. The ant that averages the largest for the mean size of the whole colony is Dinoponera gigantea, averaging up to 3.3 cm ( 1 + 1⁄ 4 in). The largest of ants, and the heaviest species of the family, are the females of Dorylus helvolus, reaching a length of 5 cm (2.0 in). The largest Heteropteryx weighed about 65 g (2.3 oz) and was 3.5 cm (1.4 in) wide across the thickest part of the body. The spiny stick insect ( Heteropteryx dilatata) of Malaysia does not reach the extreme lengths of its cousins, the body reaching up to 16 cm (6.3 in) long, but it is much bulkier. Another extremely long stick insect is Pharnacia maxima, which measured 51 cm (20 in) with its legs extended. Another of the longest insect in terms of total length is Phobaeticus serratipes of Malaysia and Singapore, measuring up to 55.5 cm (21.9 in). Another very large species is Phobaeticus kirbyi where the total length (including extended legs) is up to 54.6 cm (21.5 in) and the body alone up to 32.8 cm (12.9 in). These measurements are, however, with the front legs fully extended it has a body length measuring 35.7 cm (14.1 in). Other very large species, formerly believed to be longest but now considered third longest is Sadyattes chani a specimen held in the Natural History Museum in London has a total length of 56.7 cm (22.3 in). The second-longest species is the Australian Ctenomorpha gargantua, females of which have been measured at over 60 cm (24 in) in total length. The longest is an unnamed species of Phryganistria discovered in China in 2016, where a specimen held at the Insect Museum of West China in Chengdu has a total length of 62.4 cm (24.6 in). The longest known stick insects are also the longest known insects, notably species in the tribe Pharnaciini, but they are generally relatively lightweight because of their slender shape. Titanopterans (Titanoptera) (extinct) ĭistributions of stick insect species known to exceed 50cm in total length The longest members of this order (although much lighter than the giant wetas) is the katydid Macrolyristes corporalis of Southeast Asia which can range up to 21.5 cm (8.5 in) with its long legs extended and can have a wingspan of 20 cm (7.9 in). However, the greatest grasshopper sizes known, to 12 cm (4.7 in), have been cited in the South American giant grasshopper ( Tropidacris violaceus). The American eastern lubber grasshopper ( Romalea guttata) can allegedly range up to 10 cm (3.9 in) in length. The largest grasshopper species is often considered to be the Australian giant grasshopper ( Valanga irregularis), which ranges up to 9 cm (3.5 in) in length. These heavyweight insects can be over 9 cm (3.5 in) long. The heaviest of this widespread, varied complex of insects is the Little Barrier Island giant weta, Deinacrida heteracantha, of New Zealand one specimen weighed 71 g (2.5 oz) and measured nearly 10 cm (3.9 in), giving it one of the largest insects weights ever known. The largest Saga and Pseudophyllus bush crickets are only a few centimeters smaller. Dragonflies and damselflies (Odonata) Īrachnacris katydids and Tropidacris grasshoppers reach up to 12–15 cm (4.7–5.9 in) in length and 23–27.5 cm (9.1–10.8 in) in wingspan, making them the largest by these measurements. Their maximum body mass is uncertain, with estimates varying between 34 g and 240 g. These creatures had a wingspan of some 71 cm (28 in). Representatives of the extinct dragonfly-like order Meganisoptera (also known as griffinflies) such as the Carboniferous Meganeura monyi and the Permian Meganeuropsis permiana are the largest insect species ever known. The longest insects are the stick insects, see below. The highest confirmed weight of an adult insect is 71 g (2.5 oz) 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 50 g (1.8 oz) and 10 cm (3.9 in), can reach a greater weight. The title of heaviest insect in the world has many contenders, the most frequently crowned of which is the larval stage of the goliath beetle, Goliathus goliatus, the maximum size of which is at least 115 g (4.1 oz) and 11.5 cm (4.5 in). Insects, which are a type of arthropod, are the most numerous group of multicellular organisms on the planet, with over a million species identified so far. Megaloblatta, the world's largest cockroach spreading its wings
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