Biology:Waitkera

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Short description: Genus of spiders

Waitkera waitakerensis
Waitkera waitakerensis.jpg
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Uloboridae
Genus: Waitkera
Opell, 1979
Species:
W. waitakerensis
Binomial name
Waitkera waitakerensis
(Chamberlain, 1946)[1]

Waitkera is a genus of spiders in the family Uloboridae. It was first described in 1979 by Opell. (As of 2021), it contains only one species, Waitkera waitakerensis, found in New Zealand.[1]

Description

Female Waitkera waitakerensis are 3-5mm in length whereas males are 3-4mm in length.[2] The female may weigh about 9 mg.[3] The carapace is grey with light lateral margins. The dorsal side of the abdomen is white with five to six posteromedian grey chevrons whilst the ventral side is grey with white book lung covers. There may also be three pairs of white spots above the cribellum.[2] There is also a Northland ecotype that occupies different habitat and is larger than the rest of W. waitakerensis.[4]

Distribution/Habitat

Waitkera waitakerensis is restricted to the North Island of New Zealand. This species is the only member of the family Uloboridae endemic to New Zealand.[5] The species is typically found in forests where horizontal orb-webs are constructed in understory vegetation.[5] The Northland ecotype lives in shaded rock crevices of cliffs.[4]

References

  1. 1.0 1.1 "Uloboridae". Natural History Museum Bern. http://www.wsc.nmbe.ch/genus/3811. Retrieved 2017-03-21. 
  2. 2.0 2.1 Opell, Brent D. (1979). "Revision of the genera and tropical American species of the spider family Uloboridae". Bulletin of the Museum of Comparative Zoology 148 (10): 443–549. https://www.biodiversitylibrary.org/page/4315212. 
  3. Opell, Brent D. (December 1999). "Changes in spinning anatomy and thread stickiness associated with the origin of orb-weaving spiders". Biological Journal of the Linnean Society 68 (4): 593–612. doi:10.1111/j.1095-8312.1999.tb01190.x. 
  4. 4.0 4.1 Opell, Brent D. (August 2006). "Molecular Phylogenetic Evidence for the Parallel Evolution of Rock Ecomorphs in the New Zealand Orb-Weaving Spider Waitkera waitakerensis (Family Uloboridae)". Journal of Arachnology 34 (2): 467–475. doi:10.1636/04-94.1. https://www.biodiversitylibrary.org/part/228957. 
  5. 5.0 5.1 Paquin, Pierre; Vink, Cornelis Jacob; Dupérré, Nadine (2010). Spiders of New Zealand: Annotated Family Key & Species List. Manaaki Whenua Press. ISBN 978-0-478-34705-0. [page needed]

Wikidata ☰ Q18092630 entry