Maotoweta is a monotypic genus of cave wētā in the subfamily Macropathinae.[3] The only known species is Maotoweta virescens,[2][4] commonly known as the green moss wētā.[5] It is endemic to Aotearoa New Zealand and found in forests throughout the South Island.[5]

Maotoweta
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Suborder: Ensifera
Family: Rhaphidophoridae
Subfamily: Macropathinae
Genus: Maotoweta
Johns & Cook, 2014[2]
Species:
M. virescens
Binomial name
Maotoweta virescens
Johns & Cook, 2014[1]

Taxonomy

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The holotype of Maotoweta virescens was collected from Bog Creek Forest in the Takitimu Mountains of Southland New Zealand in 2006.[3] This species was formally described in 2014. DNA sequencing has shown the genus Maotoweta to be closely related to Notoplectron in the subfamily Macropathinae.[4]

Etymology

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The genus name Maotoweta comes from the Māori language word maoto, meaning fresh green, new growth. The species name virescens is Latin meaning growing green or verdant.[3]

Description

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The most distinguishing feature of Maotoweta viriscens is its highly variable mottled green colouration. All other described cave wētā species are shades of brown, brownish black, and yellow-brown, with mottling, bands, or stripes. It is a small cave wētā, measuring 9-12 mm long.[3]

Distribution and habitat

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Maotoweta virescens is present throughout the south island of New Zealand, but is more commonly found west of the Southern Alps. It has been found along a wide range of elevations in areas of high rainfall. It is most commonly found in native forests that support dense growth of arboreal mosses and liverworts. This is inferred to be the preferred habitat of M. virescens; however, smaller populations have been found in beech forests.[5]

Behaviour and ecology

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Like most wētā, Maotoweta virescens is nocturnal. It lives in close association with arboreal mosses and liverworts and has been observed feeding on Weymouthia mollis a species of feather moss as well as lichens and dead insects.[5]

Conservation status

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Previously considered one of the rarest cave wētā, surveys conducted in 2021 used vegetation beating in addition to night searches and found Maotoweta virescens to be present throughout the south island.[5] It is classified as 'not threatened' in the New Zealand Threat Classification System.[6]

References

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  1. ^ "Maotoweta virescens Johns & Cook, 2014". Global Biodiversity Information Facility. Retrieved 2024-11-04.
  2. ^ a b "Maotoweta Johns & Cook, 2014". Global Biodiversity Information Facility. Retrieved 2024-11-04.
  3. ^ a b c d Johns, P M; Cook, L D (2013). "Maotoweta virescens new genus and new species: hidden in a moss forest (Orthoptera: Rhaphidophoridae)". Records of the Canterbury Museum. 27: 11–17.
  4. ^ a b Dowle, Eddy J.; Trewick, Steven A.; Morgan-Richards, Mary (February 2024). "Fossil-calibrated phylogenies of Southern cave wētā show dispersal and extinction confound biogeographic signal". Royal Society Open Science. 11 (2). Bibcode:2024RSOS...1131118D. doi:10.1098/rsos.231118. ISSN 2054-5703. PMC 10864783. PMID 38356874.
  5. ^ a b c d e Tweed, James M. H.; Wakelin, Michael; McKinlay, Bruce; Murray, Tara J. (2023-03-24). "Notes on the distribution, ecology, and life history of Maotoweta virescens (Orthoptera, Rhaphidophoridae, Macropathinae) and a comparison of two survey methods". Journal of Orthoptera Research. 32 (1): 43–53. doi:10.3897/jor.32.86076. ISSN 1937-2426.
  6. ^ Trewick, S; Hegg, D; Morgan-Richards, M; Murray, T J; Watts, C; Johns, P M; Michel, P (2022). "Conservation status of Orthoptera (wētã, crickets and grasshoppers) in Aotearoa New Zealand, 2022". Department of Conservation te Papa Atawhai.