Heterotermes aureus | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Blattodea |
Infraorder: | Isoptera |
Family: | Rhinotermitidae |
Genus: | Heterotermes |
Species: | H. aureus |
Binomial name | |
Heterotermes aureus (Snyder, 1920) | |
Synonyms | |
Reticulitermes aureusSnyder, 1920 |
Heterotermes aureus, commonly known as the desert subterranean termite, [1] is a species of termite in the family Rhinotermitidae. It is native to the deserts of North America where the colony has an underground nest. [2]
This is a small termite species. The winged reproductives which emerge from the nest are about 4 mm (0.16 in) long, including their wings. The forewings are larger than the hind wings and have two distinctive hardened veins at the front. The fontanelle (front gland pore) on the head is indistinct or missing, and the body is pale yellowish brown. The soldiers have rectangular heads with a distinct fontanelle and long slender mandibles, which are fairly straight but slightly inwardly-curving near the tip. This distinguishes this species from the western subterranean termite (Reticulitermes hesperus) which has thick, curved mandibles. [1]
Heterotermes aureus is endemic to northern Mexico and the southwestern United States. The termites are found in arid habitats, [3] particularly the Colorado and Sonoran Deserts. They also feed on structural timber in buildings, fences and utility poles. This is one of the commonest underground termites in Arizona, and is able to feed in drier locations than other subterranean desert species. [1] When it enters buildings, which it can do through a minute crack in concrete, it prefers to feed on wood that grew in spring rather than summer growth, which has a higher lignin content; the attacked timbers have a honeycomb-like appearance with soil in the galleries. [1] The termites can create free-standing tubes descending from the ceiling. [1]
A colony of Heterotermes aureus consists of four castes: a queen living deep underground, winged alates, workers and soldiers. [2] The colony size has been estimated as being in the range 45,000 to 300,000 workers. [4] Tunnels are made either underground or on the surface in the form of sealed tubes. The termites only venture into the open air when the young winged reproductives emerge to embark on their nuptial flights on warm humid nights in summer. [2]
This termite feeds on dead wood. Foraging parties search for standing timber, dead cacti and suitable pieces of dead wood on the ground. It prefers to forage in shaded or damp areas, and creates yellowish-brown mud shelter tubes with a circular cross-section, to go over or round objects. [1] Although the termite is a generalist detritivore, in a research study in the Sonoran Desert, the blue palo verde (Parkinsonia florida ) was the most common dead wood species, and was consumed in the greatest quantities. Nevertheless, choller (Cylindropuntia), mesquite (Prosopis) and catclaw (Senegalia greggii) were preferred when they were available. [5] Like other termites in the family Rhinotermitidae, Heterotermes aureus harbours symbiotic protists in its gut which help it with the digestion of cellulose. [3]
Termites are a group of detritophagous eusocial insects which consume a wide variety of decaying plant material, generally in the form of wood, leaf litter, and soil humus. They are distinguished by their moniliform antennae and the soft-bodied and often unpigmented worker caste for which they have been commonly termed "white ants"; however, they are not ants, to which they are distantly related. About 2,972 extant species are currently described, 2,105 of which are members of the family Termitidae.
Reticulitermes flavipes, the eastern subterranean termite, is the most common termite found in North America. These termites are the most economically important wood destroying insects in the United States and are classified as pests. They feed on cellulose material such as the structural wood in buildings, wooden fixtures, paper, books, and cotton. A mature colony can range from 20,000 workers to as high as 5 million workers and the primary queen of the colony lays 5,000 to 10,000 eggs per year to add to this total.
Rhinotermitidae is a family of wood-soil interface feeding termites commonly known as the Subterranean termites. Many members of this family are known pests that can cause extensive damage to buildings or other wooden structures. Most species establish colonies in wood before migrating to the ground to create diffuse nests connecting to multiple pieces of wood, with some taxa such as Coptotermitinae creating mounds or centralized carton nests within wood. All members forage via shelter tubes through the soil to sources of food. In addition, Rhinotermitidae are known for having a higher level of social complexity as compared to other termites. Communication takes place through chemical activity, more specifically through traces of cuticular hydrocarbon (CHC), or semiochemicals, acting as pheromones to send signals to the king and queen of the nest. About 345 species are recognized, among these are severe pests such as Coptotermes formosanus, Coptotermes gestroi, and Reticulitermes flavipes.
Coptotermes gestroi, commonly known as the Asian subterranean termite is a small species of termite that lives underground. Both this species and the Formosan subterranean termite are destructive pests native to Asia, but have spread to other parts of the world including the United States. In Asia, this species is known as the Philippine milk termite.
The Hodotermitidae are a basal Old World family of termites known as the harvester termites. They are distinguished by the serrated inner edge of their mandibles, and their functional compound eyes which are present in all castes. They forage for grass at night and during daylight hours, and the pigmented workers are often observed outside the nest. Their range includes the deserts and savannas of Africa, the Middle East, and Southwest Asia. Their English name refers to their habit of collecting grass, which is not unique to the family however.
Incisitermes minor is a species of termite in the family Kalotermitidae known commonly as the western drywood termite. It is native to western North America, including the western United States and northern Mexico. It has been found in many other parts of the United States, all the way to the East Coast. It has been reported from Toronto. It has been introduced to Hawaii. It has been noted in China and it is not uncommon in Japan. This is an economically important pest of wooden structures, including houses. In California and Arizona alone its economic impact is estimated to be about $250 million per year.
Psammotermes is a genus of termites in the family Rhinotermitidae. It is found living in subterranean nests in arid parts of Africa.
Coptotermes is a genus of termites in the family Rhinotermitidae. Many of the roughly 71 species are economically destructive pests. The genus is thought to have originated in Southeast Asia. Worker termites from this genus forage underground and move about in roofed tunnels that they build along the surface.
Nasutitermes walkeri, commonly known as the tree termite, is a species of arboreal termite found in eastern New South Wales and southeastern Queensland, Australia.
Coptotermes frenchi, the Australian subterranean termite, is a species of termite in the family Rhinotermitidae. Termites are social insects and C. frenchi usually builds its communal nest in the root crown of a tree. From this, a network of galleries extends through the nearby soil, enabling the workers to forage in the surrounding area without emerging on the surface of the ground.
Coptotermes acinaciformis is a species of subterranean termite in the family Rhinotermitidae native to Australia. Termites are social insects and build a communal nest. In the case of C. acinaciformis, this is either in the root crown of a tree or underground. From this, a network of galleries extends through the nearby soil, enabling the workers to forage in the surrounding area without emerging on the surface of the ground. This termite can cause substantial damage to trees and the wooden parts of buildings.
Heterotermes indicola, is a species of subterranean termite of the genus Heterotermes. It is native to tropical India, Pakistan and Sri Lanka but has extended its range into the subtropics and warm temperate areas of the Himalayan foothills to altitudes of about 2,000 m (6,600 ft). It causes damage to timber in buildings and is one of the most destructive termites in urban and agricultural areas in the world. Soldiers are about 4.1-4.9mm long. Extracts of garlic and Calotropis procera are known to have termiticidal effects on H. indicola.
Reticulitermes hesperus, the western subterranean termite, is a species of termite in the family Rhinotermitidae. It is found in Central America and North America. R. hesperus is native to the coast between British Columbia and Southern California. Like other subterranean termites, they live underground, where they have elaborate eusocial societies composed of a queen, workers, and soldiers, as well as a rotating case of sexually reproductive adults and their larval and immature offspring. The reproductive adults are the only ones with functional wings. The reproductive adults will swarm on warm days in spring and fall, particularly after a rain event, looking for mating partners. These termites prefer moist living environments and prefer to consume wood that has already been partially decayed by saprotrophic fungus.
Marginitermes hubbardi, commonly known as the light western drywood termite, is a species of termite in the family Kalotermitidae. It is found in Central America and desert regions of southwestern North America.
Reticulitermes virginicus is a species of subterranean termite native to North America, found often in the southern United States. It was described in 1907.
Amitermes floridensis, commonly known as the Florida darkwinged subterranean termite, is a species of eusocial insect in the family Termitidae. It feeds on rotting wood, reached by a network of tunnels. It is endemic to west central Florida and was first described in 1989.
Pterotermes is a monotypic genus of termites in the family Kalotermitidae. Pterotermes occidentis is the single species in the genus. This termite lives in the extremely dry conditions found in the Sonoran Desert in southwestern United States, Baja California and Mexico. It feeds on dry wood and lives entirely within a single piece of timber.
Reticulitermes tibialis, the arid-land subterranean termite, is a species of termite in the family Rhinotermitidae. It is found in the United States, mostly in the western half, occurring in deserts, prairies and other dry locations.
Heterotermes is a genus of termites belonging to the family Rhinotermitidae.
Schedorhinotermes intermedius is a species of termite in the family Rhinotermitidae, endemic to eastern Australia.