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Termites are eusocial insects which are classified in the taxonomic rank of infraorder Isoptera, or as epifamily Termitoidae within the cockroach order Blattodea. Termites were once classified in a separate sequence from cockroaches, but recent phylogenetic studies indicate that they evolved from close ancestors of cockroaches during the Triassic.
Approximately 3,106 species are currently clarified, using a couple hundred more left to be clarified. Although these insects are often called"white ants", they are not ants. .
Like ants and a few bees and wasps from the separate purchase Hymenoptera, termites divide labour among castes consisting of sterile male and female"workers" and"soldiers". All colonies have fertile males called"kings" and one or more fertile females called"queens". Termites chiefly feed on dead plant material and cellulose, generally in the form of wood, leaf litter, soil, or animal dung.
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Termites are among the most successful groups of insects on Earth, colonising most landmasses except Antarctica. Their colonies range in size from a few hundred individuals to enormous societies using several million individuals. Termite queens have the longest lifespan of any insect in the world, with some queens reportedly living around 30 to 50 decades.
Colonies are described as superorganisms since the termites form a part of a self-regulating entity: the colony itself. .
Termites are a delicacy in the diet of several human cultures and are used in many traditional medicines. A couple hundred species are economically significant as pests which can cause considerable damage to buildings, plants, or plantation forests. Some species, such as the West Indian drywood termite (Cryptotermes brevis), are regarded as invasive species. .
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The infraorder name Isoptera is derived from the Greek words iso (equivalent ) and ptera (winged), which describes the nearly equal size of their fore and hind wings.2"Termite" derives from the Latin and Late Latin word termes ("woodworm, white ant"), modified by the influence of Latin terere ("to rub, wear, erode") from the prior word tarmes.
The external appearance of this giant northern termite Mastotermes darwiniensis is suggestive of their close relationship between termites and cockroaches.
Termites were previously put in the order Isoptera. As early as 1934 suggestions were made that they were closely linked to wood-eating cockroaches (genus Cryptocercus, the woodroach) based on the similarity of the symbiotic gut flagellates.6 In the 1960s additional evidence supporting that hypothesis appeared when F. A. McKittrick noted similar morphological traits between some termites and Cryptocercus nymphs.7 In 2008 DNA analysis from 16S rRNA sequences8 affirmed the position of termites being nested within the evolutionary tree containing the order Blattodea, which included that the cockroaches.910 The cockroach genus Cryptocercus shares the strongest phylogenetical similarity with termites and is considered to be a sister-group to termites.1112 Termites and Cryptocercus share similar morphological and societal features: for example, most cockroaches do not display societal characteristics, but Cryptocercus takes good care of its own young and exhibits other social behavior such as trophallaxis and allogrooming.13 Termites are regarded as the descendants of the genus Cryptocercus.914 Some researchers have suggested that a more conservative measure of retaining the termites as the Termitoidae, an epifamily within the cockroach sequence, which preserves the classification of termites in family level and under.15 Extra resources Termites have long been accepted to be closely associated with cockroaches and mantids, and they are categorized in precisely the same superorder (Dictyoptera).1617.
The earliest unambiguous termite fossils date to the early Cretaceous, but given the diversity of Cretaceous termites and early fossil records showing mutualism between microorganisms and these insects, they probably originated earlier in the Jurassic or Triassic.181920 Further evidence of try here a Jurassic origin is that the assumption that the extinct Fruitafossor consumed termites, judging from the morphological resemblance to modern termite-eating mammals.21 The oldest termite nest detected is believed to be from the Upper Cretaceous in West Texas, where the oldest known faecal pellets have been also discovered.22 Claims that termites emerged previously have confronted controversy.
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Weesner indicated that the Mastotermitidae termites may return to the Late Permian, 251 million years ago,23 and fossil wings which have a close resemblance to the wings of Mastotermes of their Mastotermitidae, the most primitive living , have been found in the Permian layers in Kansas.24 it's even possible that the very first termites emerged during the Carboniferous.25 The folded wings of this fossil wood roach Pycnoblattina, arranged in a convex pattern between segments 1a and 2a, resemble those seen in Mastotermes, the only living insect with the same pattern.24 Krishna et al., however, consider that each one of the Paleozoic and Triassic insects tentatively categorized as termites are in fact unrelated to termites and needs to be excluded out of the Isoptera.26 The primitive giant northern termite (Mastotermes darwiniensis) exhibits numerous cockroach-like attributes that are not shared with other termites, like laying its eggs in rafts and having anal lobes on the wings.27 Cryptocercidae and Isoptera are united in the clade Xylophagidae.28 Termites are sometimes called"white ants" but the only resemblance to the ants is due to their sociality which is because of convergent evolution2930 with termites being the very first social insects to evolve a caste system more than 100 million years ago.31 Termite genomes are generally relatively large compared to that of other insects; the first fully sequenced termite genome, of Zootermopsis nevadensis, which was published in the journal Nature Communications, consists of approximately 500Mb,32 while two subsequently released genomes, Macrotermes natalensis and Cryptotermes secundus, are considerably larger at around 1.3Gb.3330.