Apterygon

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]

Apterygon
Female and male A. mirum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Psocodea
Family: Menoponidae
Genus: Apterygon
Clay, 1961
Type species
Apterygon mirum
Clay, 1961
Species
  • A. dumosum Tandan, 1972
  • A. hintoni Clay, 1966
  • A. mirum Clay, 1961
  • A. okarito Palma & Price, 2004

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 Opotiki, 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]

References
  1. 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. 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. 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.
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