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Sigaus collinus

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(Redirected from Brachaspis collinus) Species of grasshopper

Sigaus collinus
Sigaus collinus, New Zealand
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Suborder: Caelifera
Family: Acrididae
Tribe: Catantopini
Genus: Sigaus
Species: S. collinus
Binomial name
Sigaus collinus
(Hutton, 1898)

The Green Rock-hopper grasshopper, Sigaus collinus is an alpine species of short-horned grasshopper in the family Acrididae. It is found in New Zealand in the mountains of northern South Island, above the tree line and as high as 2000 m asl. In New Zealand alpine grasshoppers can freeze solid at any time of the year and are alive when they thaw out when temperatures rise.

Sigaus collinus is flightless and adults are relative large (females 32 mm), and common amongst scree and tussock. Although widespread in 2020, about 97% of the habitat of the green rock-hopper grasshopper will be lost due to global warming by 2070. The species is variable in colour; most individuals are green with yellow markings, but some are olive-grey. In the Kaikōura Ranges (Mt Luxford) S. collinus hybridises with S. nivalis, but elsewhere the two species are well differentiated.

An endemic species of mite (Erythrites jacksoni) is an ectoparasite of this grasshopper.

The New Zealand alpine green rock-hopper grasshopper, Brachaspis collinus, at Rainbow Ski Field, Nelson Lakes National Park (adult female)
The New Zealand alpine green rock-hopper grasshopper, Brachaspis collinus, at Rainbow Ski Field, Nelson Lakes National Park (adult female)




References

  1. Trewick, Steven A.; Koot, Emily M.; Morgan-Richards, Mary (2023). "Māwhitiwhiti Aotearoa: Phylogeny and synonymy of the silent alpine grasshopper radiation of New Zealand (Orthoptera: Acrididae)". Zootaxa. 5383 (2): 225–241. doi:10.11646/zootaxa.5383.2.7. ISSN 1175-5334. PMID 38221250.
  2. ^ Bigelow, R. S. (1967). The Grasshoppers of New Zealand: Their taxonomy and distribution. Christchurch NZ: Pegasus Press.
  3. "Brachaspis collinus". GBIF. Retrieved 2021-09-09.
  4. Otte, Daniel; Cigliano, Maria Marta; Braun, Holger; Eades, David C. (2020). "species Brachaspis collinus (Hutton, 1898)". Orthoptera species file online, Version 5.0. Retrieved 2020-11-24.
  5. ^ Koot, Emily M.; Morgan-Richards, Mary; Trewick, Steven A. (2020). "An alpine grasshopper radiation older than the mountains, on Kā Tiritiri o te Moana (Southern Alps) of Aotearoa (New Zealand)". Molecular Phylogenetics and Evolution. 147: 106783. Bibcode:2020MolPE.14706783K. doi:10.1016/j.ympev.2020.106783. ISSN 1055-7903. PMID 32135305. S2CID 212567788.
  6. Hawes, Timothy C. (2015). "Canalization of freeze tolerance in an alpine grasshopper". Cryobiology. 71 (2): 356–359. doi:10.1016/j.cryobiol.2015.07.008. ISSN 0011-2240. PMID 26210007.
  7. Batcheler, C.L. (1967). "Preliminary observations of alpine grasshoppers in a habitat modified by deer and chamois" (PDF). Proceedings of the New Zealand Ecological Society.
  8. Koot, Emily M.; Morgan-Richards, Mary; Trewick, Steven A. (2022). "Climate change and alpine-adapted insects: modelling environmental envelopes of a grasshopper radiation". Royal Society Open Science. 9 (3): 211596. Bibcode:2022RSOS....911596K. doi:10.1098/rsos.211596. PMC 8889178. PMID 35316945.
  9. Trewick, Steven A. (2001-09-01). "Identity of an endangered grasshopper (Acrididae: Brachaspis): Taxonomy, molecules and conservation". Conservation Genetics. 2 (3): 233–243. Bibcode:2001ConG....2..233T. doi:10.1023/A:1012263717279. ISSN 1572-9737. S2CID 21828397.
  10. Southcott, Ronald V. (1988). "Two new larval Erythraeinae (Acarina: Erythraeidae) from New Zealand, and the larval Erythraeinae revised". New Zealand Journal of Zoology. 15 (2): 223–233. doi:10.1080/03014223.1988.10422617. ISSN 0301-4223.

External links

Taxon identifiers
Brachaspis collinus


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