Termitaradus avitinquilinus

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Termitaradus avitinquilinus
Temporal range: Burdigalian?
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Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Family: Termitaphididae
Genus: Termitaradus
Species:
T. avitinquilinus
Binomial name
Termitaradus avitinquilinus
Grimaldi & Engel, 2008

Termitaradus avitinquilinus is an extinct species of termite bug in the family Termitaphididae known from several possibly Miocene fossils found in the Dominican Republic. T. avitinquilinus is the first species in the genus Termitaradus to have been described from fossils found in Dominican amber and is one of four species from New World amber, the others being Termitaradus protera , Termitaradus dominicanus and Termitaradus mitnicki . [1] [2] [3]

Contents

History and classification

Termitaradus avitinquilinus is known from a group of three fossil insects which are inclusions in transparent chunks of Dominican amber. The amber was produced by the extinct Hymenaea protera , which formerly grew on Hispaniola, across northern South America and up to southern Mexico. The holotype amber specimen, DR-14-425, is currently housed in the amber fossil collection of the American Museum of Natural History in New York City, while the two paratype specimens are in the private Morone amber collection in Turin, Italy. The holotype fossil is composed of a complete adult individual that was collected from an unidentified amber mine [1] in fossil-bearing rocks in the Cordillera Septentrional mountains of northern Dominican Republic. [2] The amber dates from at least the Burdigalian stage of the Miocene, based on studying the associated fossil foraminifera and may be as old as the Middle Eocene, based on the associated fossil coccoliths. This age range is due to the host rock being secondary deposits for the amber and the Miocene the age range is only the youngest that it might be. [2] The fossil was examined by paleoentomologists David Grimaldi and Michael S. Engel, both of the American Museum of Natural History. Grimaldi and Engel's 2008 type description of the new species was published in the natural sciences journal American Museum Novitates . [1] The specific epithet avitinquilinus from the Latin word "avitus" meaning ancestral and the word"inquilinus" which translates to lodger. [1]

The two paratype specimens are preserved in a single piece of amber in close association with a worker caste Mastotermes electrodominicus termite. It was suggested by Grimaldi and Engel that T. avitinquilinus cohabited with M. electrodominicus. Modern termite bugs live in the nests of rhinotermitid termites, and this is the first and only known association of termite bugs and Mastotermes termites. [1]

Description

The Termitaradus avitinquilinus holotype is a female with a total length of 3.7 millimetres (0.15 in) and a width of 2.24 millimetres (0.088 in), which is close to the size range seen in living Termitaradus species. The overall coloration of T. avitinquilinus is a reddish brown which is lighter in tone along the body margin and darkening towards the body center. The head has small antennae that are composed of four antennomeres. T. avitinquilinus has each side of the body is segmented into fourteen distinct lobes. Each of the lobes is divided into between four and possibly as much fifteen lobules with triangular to lance shaped setae along the edges of the insect. [1] While some other Termitaradus species have a grouping of thick setae in a comb like structure on the tibia of the front most leg, this structure is absent in ''T. . It has been suggested these grouping of setae may be grooming combs in the living species. [2] T. avitinquilinus is the shortest species of Termitaradus, with the two other Dominican amber species being longer. [2] T. mitnicki is longer at 5.8 millimetres (0.23 in) [2] and T. dominicanus is the longest Dominican amber species at 6.4 millimetres (0.25 in) long. [3] The largest amber species, and largest species in the genus, is T. protera at 7.1 millimetres (0.28 in) long. [2]

Related Research Articles

Termitaphididae Family of true bugs

Termitaphididae, occasionally called termite bugs, is a small tropicopolitan family of true bugs placed in the superfamily Aradoidea. Typically members of Termitaphididae are small, being an average of 2 millimetres (0.079 in)-4 millimetres (0.16 in), and flattened with laminae extending out from each body segment giving a round scale like appearance. Currently the family contains two genera and twelve known species. Members of Termitaphididae are inquilines lodging in the nests of host species of termite families Termitidae and Rhinotermitidae. Though considered a separate family in Aradoidea it has been suggested by Drs David Grimaldi and Michael Engel in 2008 that Termataphididae may in fact be highly derived members of Aradidae. Of the thirteen known species one Termitaphis circumvallata belongs to the monotypic genus Termitaphis and four of the remaining eleven species in Termitaradus are extinct, having only been found in amber. The living species are found worldwide in the tropical regions of Central and South America, Africa, Asia, and Australia.

<i>Termitaradus</i> Genus of true bugs

Termitaradus is a small tropicopolitan genus of true bugs placed in the family Termitaphididae. As is typical for the family, living members of Termitaradus are small, being an average of 2 millimetres (0.079 in) to 4 millimetres (0.16 in), and flattened with laminae extending out from each body segment giving a round scale like appearance. The same is true for the extinct species with the exception of T. protera which reaches 7 millimetres (0.28 in) in length. All members of Termitaphididae are inquilines lodging in the nests of host species of termites, with Termitaradus species known only from the family Rhinotermitidae. Though considered a separate family in Aradoidea it has been suggested by Drs David Grimaldi and Michael Engel in 2008 that Termataphididae may in fact be highly derived members of Aradidae. The second genus placed in Termitaphididae, Termitaphis, contains the monotypic species Termitaphis circumvallata which inhabits nests of Termitidae (termites) in Colombia.

<i>Termitaradus mitnicki</i> Extinct species of true bug

Termitaradus mitnicki is an extinct species of true bug in the family Termitaphididae known only from early Miocene Burdigalian stage Dominican amber deposits on the island of Hispaniola.

<i>Mastotermes</i> Genus of termites

Mastotermes is a genus of termites. The sole living species is Mastotermes darwiniensis, found only in northern Australia. A number of extinct taxa are known from fossils. It is a very peculiar insect, the most primitive termite alive. As such, it shows notable similarities to certain cockroaches, the termites' closest relatives. These similarities include the anal lobe of the wing and the laying of eggs in bunches, rather than singly. The termites were traditionally placed in the Exopterygota, but such an indiscriminate treatment makes that group a paraphyletic grade of basal neopterans. Thus, the cockroaches, termites and their relatives are nowadays placed in a clade called Dictyoptera.

Termitaradus dominicanus is an extinct species of termite bug in the family Termitaphididae known from a Miocene fossil found on Hispaniola. T. dominicanus is the third species in the genus Termitaradus to have been described from fossils found in Dominican amber after Termitaradus avitinquilinus and Termitaradus mitnicki.

Termitaradus protera is an extinct species of termite bug in the family Termitaphididae known from several Late Oligocene to Early Miocene fossils found in Mexico. T. protera is the only species in the extant genus Termitaradus to have been described from fossils found in Mexican amber and is one of four species from new world amber; the others are Termitaradus avitinquilinus, Termitaradus dominicanus and Termitaradus mitnicki. T. protera was also the first termite bug described from the fossil record.

Anthophorula (Anthophorula) persephone is an extinct species of bee in the subfamily Apinae known from a pair of possibly Miocene fossils found on Hispaniola. A. persephone is the first species of the bee tribe Exomalopsini to have been described from fossils found in Dominican amber and is the only species of Anthophorula found in the West Indies.

<i>Acanthostichus hispaniolicus</i> Extinct species of ant

Acanthostichus hispaniolicus is an extinct species of ant in the subfamily Dorylinae known from a group of possibly Miocene fossils found on the Caribbean island of Hispaniola. A. hispaniolicus is the first species of the ant genus Acanthostichus to have been described from fossils found in Dominican amber, and is the only species of Acanthostichus found in the West Indies.

<i>Acropyga glaesaria</i> Extinct species of ant

Acropyga glaesaria is an extinct species of ant in the subfamily Formicinae known from a group of possibly Miocene fossils found on Hispaniola. A. glaesaria is the first species of the ant genus Acropyga to have been described from fossils found in Dominican amber and is the one of several species of Acropyga found in the West Indies. As with other members of the genus, A. glaesaria was most likely trophobiotic.

<i>Anochetus exstinctus</i> Extinct species of ant

Anochetus exstinctus is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. A. exstinctus is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antillies.

<i>Anochetus lucidus</i> Extinct species of ant

Anochetus lucidus is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. A. lucidus is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antillies.

Pseudarmadillo cristatus is an extinct species of isopod (woodlouse) in the family Delatorreiidae known from a series of possibly Miocene fossils found on Hispaniola. At the time of description P. cristatus was one of two Pseudarmadillo species known from the fossil record and one of only two from Hispaniola.

<i>Aphaenogaster amphioceanica</i> Extinct species of ant

Aphaenogaster amphioceanica is an extinct species of ant in the subfamily Myrmicinae known from a single possibly Miocene fossil found in amber on Hispaniola. At the time of description A. amphioceanica was one of two Aphaenogaster species known from the Caribbean islands.

Pseudarmadillo tuberculatus is an extinct species of isopod in the family Delatorreiidae known from a series of possibly Miocene fossils found on Hispaniola. At the time of description P. tuberculatus was one of two Pseudarmadillo species known from the fossil record and one of only two from Hispaniola.

Apterostigma electropilosum is an extinct species of ant in the subfamily Myrmicinae known from a single possibly Miocene fossil found on Hispaniola. A. electropilosum is one of only two species of the ant genus Apterostigma and one of five attini species to have been described from fossils found in Dominican amber.

Apterostigma eowilsoni is an extinct species of ant in the subfamily Myrmicinae known from a single possibly Miocene fossil found on Hispaniola. A. eowilsoni is one of only two species of the ant genus Apterostigma and one of five attini species of to have been described from fossils found in Dominican amber.

Azteca eumeces is an extinct species of ant in the subfamily Dolichoderinae known from possibly Miocene fossils found on Hispaniola. A. eumeces is one of only two species in the ant genus Azteca to have been described from fossils, both found in Dominican amber.

<i>Zatania electra</i> Extinct species of ant

Zatania electra is an extinct species of ant in the subfamily Formicinae known from three possibly Miocene fossils found on Hispaniola. Z. electra is one of several Zatania species found in the Greater Antilles.

Dicromantispa moronei is an extinct species of mantidfly in the neuropteran family Mantispidae known from a fossil found in the Caribbean.

Feroseta is an extinct genus of mantidfly in the neuropteran family Mantispidae known from a fossil found in North America, and which contains a single species, Feroseta prisca.

References

  1. 1 2 3 4 5 6 Grimaldi, D.; Engel, M. S. (2008). "A termite bug in Early Miocene amber of the Dominican Republic (Hemiptera: Termitaphididae)" (PDF). American Museum Novitates (3619): 1–10. doi:10.1206/610.1.
  2. 1 2 3 4 5 6 7 Poinar, G.; Heiss, E. (2011). "New Termitaphididae and Aradidae (Hemiptera) in Mexican and Dominican amber" (PDF). Palaeodiversity. 4: 51–62.
  3. 1 2 Engel, M.S. (2009). "A new termite bug in Miocene amber from the Dominican Republic (Hemiptera, Termitaphididae)". ZooKeys (25): 61–68. doi: 10.3897/zookeys.25.267 .