Apterygon

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Apterygon
Apterygon mirum NHMUK010651591 (cropped).jpg
Female and male A. mirum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Psocodea
Family: Menoponidae
Genus: Apterygon
Clay, 1961
Type species
Apterygon mirum
Clay, 1961
Species

Apterygon is a genus of louse. It is endemic to New Zealand and is an ectoparasite of kiwi birds (Apteryx). [1] Theresa Clay circumscribed the genus in 1961. [2] In 1947, she had referred to this genus as "New Genus D", but it was not formally named as she needed to confirm the host of her specimen as well as additional material. [2] [3]

Contents

Description

Apterygon heads lack preocular slits and the female genital chamber has a cellular circular structure. [4] They lack eyes, have a reduced hypopharynx and a well developed postnotum. [5]

Species

As of 2017, four species are recognized in this genus. [1]

A. mirum , the type species of this genus, was described by Clay in the same paper which named the genus Apterygon. The holotype came from a North Island brown kiwi which was killed by a car in Ōpōtiki, New Zealand. [2] It is found in New Zealand's North Island. [1]

Clay described a second species for this genus, A. hintoni , in 1966. Its type host was a great spotted kiwi and its type locality was Nelson, New Zealand. [6] It is found in New Zealand's South Island. [1]

In 1972, B. K. Tandan described a third species, A. dumosum , based on specimens from a Stewart Island brown kiwi on Stewart Island, New Zealand. [5] It is found throughout New Zealand. [1] In addition to the Stewart Island brown kiwi, it parasitizes the South Island brown kiwi and the little spotted kiwi. [1]

The fourth species to be described was A. okarito , whose description by Ricardo L. Palma and Roger D. Price was published in 2004. Its type host is the Okarito kiwi, found in Okarito, New Zealand. [7] It is only found in Westland in New Zealand's South Island. [1]

Hosts

Lice in this genus are ectoparasites of all species of kiwi (Apteryx). The only other lice which parasitize kiwi are in the subgenus Rallicola (Aptericola). [1]

Related Research Articles

<span class="mw-page-title-main">Kiwi (bird)</span> Order of birds

Kiwi are flightless birds endemic to New Zealand of the order Apterygiformes. The five extant species fall into the family Apterygidae and genus Apteryx. Approximately the size of a domestic chicken, kiwi are the smallest ratites.

<span class="mw-page-title-main">Louse</span> Order of insects

Louse is the common name for any member of the clade Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera has variously been recognized as an order, infraorder, or a parvorder, as a result of developments in phylogenetic research.

<i>Haematomyzus</i> Genus of lice

The genus Haematomyzus includes three species of lice that differ so markedly from all other lice that the genus is placed in its own family Haematomyzidae, itself monotypic within the superfamily Rhynchophthirina. These unusual lice are ectoparasites of elephants and warthogs. Their mouthparts are elongated to form a drill-like structure that allows them to penetrate the thick skin of their host.

<span class="mw-page-title-main">Amblycera</span> Suborder of lice

The Amblycera are a large clade of chewing lice, parasitic on both birds and mammals. The Amblycera are considered the most primitive clade of lice.

<span class="mw-page-title-main">Okarito kiwi</span> Species of bird

The Okarito kiwi, also known as the rowi or Okarito brown kiwi, is a member of the kiwi family Apterygidae, described as new to science in 2003. The species is part of the brown kiwi complex, and is morphologically very similar to other members of that complex. It is found in a restricted area of the Ōkārito forest on the West Coast of New Zealand's South Island, and has a population of only about 600 birds.

A bird louse is any chewing louse of order Phthiraptera which parasitizes warm-blooded animals, especially birds. Bird lice may feed on feathers, skin, or blood. They have no wings, and their biting mouth parts distinguish them from true lice, which suck blood.

<span class="mw-page-title-main">Menoponidae</span> Family of lice

Menoponidae is a monophyletic family of lice in the superfamily of chewing lice, Amblycera, often referred to as the chicken body louse family. They are ectoparasites of a wide range of birds including chickens, which makes them important to understand for veterinary science and for human health. However, Menoponidae are not exclusive to poultry and are common parasites for migratory birds, with more and more species being discovered every year.

Rallicola extinctus is an extinct species of phtilopterid louse. The parasite was only known to live on the now extinct huia and is thought to have become extinct with its host. Like its host, it was endemic to New Zealand's North Island.

<i>Menacanthus</i> Genus of lice

Menacanthus is a genus of chewing lice which parasitise birds. The taxonomy of this genus is highly uncertain. Most taxonomies have given this genus as having over a hundred species, but recent studies have synonymised dozens of species and found other names to be invalid. Some Menacanthus species remain to be discovered, or are synonymised in error. Menacanthus lice feed on the blood of a wide variety of birds, including chickens, by piercing the quills of feathers and gnawing the epidermis. In doing so, they can spread disease and lower egg production. In Menacanthus stramineus, eggs are incubated for four or five days, each of the three nymphal stages lasts for about three days, and adult life for about twelve days. Females produce as many as four eggs in a day, averaging 1.6 eggs a day, with egg production peaking 5–6 days after reaching adulthood. On sparrows, Menacanthus lice are particularly common, and are found in many different niches, consuming blood and feathers.

Brueelia is a genus of bird lice in the family Philopteridae that infest Passerine (perching) birds. Lice in Brueelia are usually host specific, with more than 85% of described species each found on a single host bird species. Over 300 species of Brueelia have been described, and many more specimens that are presumed to belong to Brueelia are awaiting description and naming.

<span class="mw-page-title-main">Ricinidae</span> Family of lice

The Ricinidae are a family of a larger group Amblycera of the chewing lice. All species are relatively large bodied avian ectoparasites. They typically exhibit low prevalence and low intensity. They feed on host blood which is atypical in chewing lice. Two or three genera are recognized.

<i>Harrisoniella hopkinsi</i> Species of louse

Harrisoniella hopkinsi is a species of phtilopterid louse that lives on and eats the feathers of albatrosses. The species was first described by W. Eichler in 1952.

Strigiphilus is a genus of chewing louse in the suborder Ischnocera. It was circumscribed in 1910 by Eric Mjöberg.

<i>Colpocephalum</i> Genus of lice

Colpocephalum is a genus of chewing louse. Christian Ludwig Nitzsch named the genus in 1818. The Plenary Powers of the International Commission on Zoological Nomenclature selected Colpocephalum zebraBurmeister, 1838 as its type species in the 1950s. There are approximately 135 species in this genus, and they are ectoparasites of birds in at least a dozen different orders.

<i>Rallicola</i> Genus of lice

Rallicola is a genus of chewing louse. It is an ectoparasite of rails and other birds. It was named by Thomas Harvey Johnston and Launcelot Harrison in 1911. There are two subgenera aside from the nominotypical subgenus: Aptericola, whose species are found on kiwi birds, and Huiacola, a monospecific subgenus consisting of Rallicola extinctus, once found on the huia.

<i>Actornithophilus</i> Genus of lice

Actornithophilus is a genus of louse in the family Amblycera. It was circumscribed by Gordon Floyd Ferris in 1916. Its species are ectoparasites of birds in the order Charadriiformes.

<i>Quadraceps</i> Genus of lice

Quadraceps is a genus of louse. They are ectoparasites of birds in the order Charadriiformes, and the genus was circumscribed in 1939 by Theresa Clay and Richard Meinertzhagen. Infestation is believed to increase the rate of nest desertion, lowers the success rate of baby birds hatching, reduces the number of birds in the clutch, and cause birds to attract fewer mates. All in all, the survival of the nestlings is lowered drastically.

<span class="mw-page-title-main">Harrison's rule</span>

Harrison's rule is an observation in evolutionary biology by Launcelot Harrison which states that in comparisons across closely related species, host and parasite body sizes tend to covary positively.

Austromenopon is a genus of insects belonging to the family Menoponidae.

<i>Apterygon okarito</i> Species of louse

Apterygon okarito is a species of louse belonging to the family Menoponidae.

References

  1. 1 2 3 4 5 6 7 8 Palma, Ricardo L. (2017). Phthiraptera (Insecta) A catalogue of parasitic lice from New Zealand. Fauna of New Zealand. Vol. 76. Lincoln, New Zealand: Landcare Research. pp. 20, 39–41, 245. doi: 10.7931/J2/FNZ.76 . ISBN   978-0-947525-19-4.
  2. 1 2 3 Clay, Theresa (1960) [1961]. "A new genus and species of Menoponidae (Mallophaga, Insecta) from Apteryx" (PDF). Annals and Magazine of Natural History. Series 13. 3 (33): 571–576. doi:10.1080/00222936008651059. Archived from the original (PDF) on 2017-11-07. Retrieved 2017-11-04.
  3. Clay, Theresa (1947). "A Preliminary Key to the Genera of the Menoponidae (Mallophaga)". Proceedings of the Zoological Society of London. 117 (2–3): 457–477. doi:10.1111/j.1096-3642.1947.tb00532.x.
  4. Clay, Theresa (1969). "A key to the genera of the Menoponidae (Amblycera: Mallophaga: Insecta)". Bulletin of the British Museum (Natural History). Entomology. 24 (1): 3–26. doi:10.5962/bhl.part.1517.
  5. 1 2 Tandan, B. K. (1972). "The Species of Apterygon (Insecta: Phthiraptera: Amblycera) Parasitic on Kiwis (Apteryx)" (PDF). New Zealand Journal of Science. 15 (1): 52–69. Archived from the original (PDF) on 2011-11-11. Retrieved 2017-11-04.
  6. Clay, Theresa (1966). "A New Species of Apterygon (Mallophaga: Menoponidae)" (PDF). The Entomologist. 99: 292–293. Archived from the original (PDF) on 2017-11-07. Retrieved 2017-11-04.
  7. Palma, Ricardo L.; Price, Roger D. (2004). "Apterygon okarito a new species of chewing louse (Insecta: Phthiraptera: Menoponidae) from the Okarito brown kiwi (Aves: Apterygiformes: Apterygidae)". New Zealand Journal of Zoology. 31 (1): 67–73. doi:10.1080/03014223.2004.9518361. S2CID   85317277.