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Termites are eusocial insects that are categorized at the taxonomic rank of infraorder Isoptera, or as epifamily Termitoidae within the cockroach order Blattodea. Termites were once classified in another order from cockroaches, but recent phylogenetic studies indicate that they evolved from close ancestors of cockroaches during the Triassic.
About 3,106 species are currently clarified, with a couple hundred more left to be described. Although these insects are often called"white ants", they are not ants. .
Like ants and some bees and wasps from the distinct purchase Hymenoptera, termites split labour among castes consisting of sterile male and female"employees" 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 kind of wood, leaf litter, dirt, or animal dung.
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Termites are among the most successful groups of insects on Earth, colonising many landmasses except Antarctica. Their colonies range in size from a couple hundred individuals to enormous societies using several million individuals. Termite queens have the longest lifespan of any insect in the world, with some queens allegedly living around 30 to 50 years.
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 some human cultures and are employed in many traditional medicines. A couple hundred species are economically significant as pests that can cause considerable damage to buildings, plants, or plantation forests. Some species, like the West Indian drywood termite (Cryptotermes brevis), are regarded as invasive species. .
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The infraorder name Isoptera comes from the Greek words iso (equal) and ptera (winged), which describes the nearly equal size of the fore and hind wings.2"Termite" derives from the Latin and Late Latin term termes ("woodworm, white ant"), modified from the influence of Latin terere ("to rub, wear, erode") by the earlier word tarmes.
The external appearance of this giant northern termite Mastotermes darwiniensis is indicative of the intimate relationship between termites and cockroaches.
Termites were previously put in the order Isoptera. As early as 1934 suggestions were made they were closely related to wood-eating cockroaches (genus Cryptocercus, the woodroach) based on the similarity of their symbiotic gut flagellates.6 In the 1960s additional evidence supporting that theory appeared when F. A. McKittrick noted comparable morphological characteristics between some termites and Cryptocercus nymphs.7 In 2008 DNA analysis from 16S rRNA sequences8 supported the position of termites being nested within the evolutionary tree containing the order Blattodea, which included 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 social features: for instance, most cockroaches do not exhibit societal attributes, but Cryptocercus takes good care of its own young and displays other societal behavior like trophallaxis and allogrooming.13 Termites are regarded as the descendants of the genus Cryptocercus.914 Some investigators have suggested that a more conservative measure of retaining the termites as the Termitoidae, an epifamily within the cockroach order, which averts the classification of termites in family level and below.15 Termites have long been approved to be closely associated with cockroaches and mantids, and they're categorized in the same superorder (Dictyoptera).1617.
The earliest unambiguous termite fossils date to the early Cretaceous, but given the diversity of Cretaceous termites and ancient fossil records showing mutualism between microorganisms and these insects, they likely originated before in the Jurassic or Triassic.181920 Further evidence of a Jurassic origin would be the assumption that the extinct Fruitafossor consumed termites, judging from its morphological resemblance to modern termite-eating mammals.21 The oldest termite nest detected is thought to be from the Upper Cretaceous in West Texas, in which the earliest known faecal pellets were also discovered.22 Claims that footprints arose previously have faced controversy.
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Weesner indicated that the Mastotermitidae termites may go back to the Late Permian, 251 million years ago,23 and fossil wings that have a close resemblance to the wings of Mastotermes of the Mastotermitidae, the toughest living , have been discovered in the Permian layers in Kansas.24 It is even possible that the very first termites emerged during the Carboniferous.25 The folded wings of this fossil wood you could check here 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 should be excluded from the Isoptera.26 The crude giant northern termite (Mastotermes darwiniensis) exhibits numerous cockroach-like attributes which 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 that's due to convergent evolution2930 with termites being the very first social insects to evolve a caste system more than 100 million years back.31 Termite genomes are generally relatively large in comparison to that of other insects; the first completely sequenced termite genome, of Zootermopsis nevadensis, which was published in the journal Nature Communications, consists of roughly 500Mb,32 while 2 subsequently published genomes, Macrotermes natalensis and Cryptotermes secundus, are considerably larger at around 1.3Gb.3330.