Motuweta isolata Johns, 1997

Mercury Islands tusked wētā, Middle Island tusked wētā



Taxonomy & Nomenclature



Conservation Status

Formerly extinct in the wild



Mercury Islands, North Island (off north-eastern coast), New Zealand


Biology & Ecology










Original scientific description:

Johns, P. M. (1997). The Gondwanaland Weta: Family Anostostomatidae (formerly in Stenopelmatidae, Henicidae or Mimnermidae): Nomenclatural Problems, World Checklist, New Genera and Species. Journal of Orthoptera Research (6): 125-138.


Other references:

Holmes, Branden. (2021). What's Lost and What Remains: The Sixth Extinction in 100 Accounts (eBook). Self published.

Stringer, I. A. N. and Hitchmough, R. A. (2012). Assessing the conservation status of New Zealand’s native terrestrial invertebrates. New Zealand Entomologist 35(2): 77-84.

Trewick, S., Hegg, D., Morgan-Richards, M., Murray, T., Watts, C., Johns, P. and Michel, P. (2022). Conservation status of Orthoptera (wētā, crickets and grasshoppers) in Aotearoa New Zealand, 2022. New Zealand Threat Classification Series 39. Department of Conservation, Wellington. 28 pp.

Trewick, Steve, Johns, Peter, Hitchmough, Rod, Rolfe, Jeremy and Stringer, Ian. (2016). Conservation status of New Zealand Orthoptera, 2014. New Zealand Threat Classification Series 16. Department of Conservation, Wellington. 15 pp.


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