Amychus manawatawhi
{{Short description|Species of beetle}}
{{Use New Zealand English|date=July 2024}}
{{Italic title}}
{{Speciesbox
| name = Three Kings click beetle
| image = COLE Elateridae Amychus manawatawhi.png
| image_alt =
| image_caption = Amychus manawatawhi by Joanna Liddiard
| status = NU
| status_system = NZTCS
| genus = Amychus
| species = manawatawhi
| authority = Marris and Johnson, 2010{{cite journal|last1=Marris|first1=John W. M.|first2=Paul J.|year=2010|title=A revision of the New Zealand click beetle genus Amychus Pascoe 1876 (Coleoptera: Elateridae: Denticollinae) with a description of a new species from the Three Kings Islands|url=https://www.researchgate.net/publication/239529303|journal=Zootaxa|volume=2331|pages=35–56|last2=Johnson|accessdate=2016-05-29}}
| synonyms =
}}
Amychus manawatawhi, commonly known as the Three Kings click beetle, is a large flightless click beetle in the family Elateridae, found only on the Three Kings Islands of New Zealand.
Discovery and etymology
This species was named and described by John Marris and Paul J. Johnson in 2010, based on a type specimen collected in 2006 at Lighthouse Bush on Great Island, Three Kings; the holotype was deposited in the Lincoln University Entomology Research Collection (LUNZ).{{Cite web|url=https://livingheritage.lincoln.ac.nz/nodes/view/35675|title=Amychus manawatawhi Holotype|website=Lincoln University Living Heritage: Tikaka Tuku Iho|access-date=2019-12-04}}
The name manawatawhi is taken from the Māori name for Great Island, Manawa Tawhi, which translates as "panting breath", referring to the feat of Te Aopuri chief Rauru swimming to the island from the mainland.Cheeseman, T.F. (1888) "Notes on the Three Kings Islands." Transactions and Proceedings of the New Zealand Institute: 20, 141–150.
Description
Adult A. manawatawhi can be distinguished from other Amychus species by its lack of small nodules on the back, especially on the head and elytra, compared to A. granulatus and A. candezei. It is the largest of the three Amychus species, ranging from 16 to 24 mm. It has a flattened body shape and small vestigial wings. Click beetles are named for their ability to make an audible click when on their back to jump into the air.{{cite web|last1=Hall|first1=Grace|title=Click Beetle|url=http://www.landcareresearch.co.nz/resources/identification/animals/bug-id/what-is-this-bug/bugs-with-legs/6-legs/beetles/click-beetle|website=Landcare Research|accessdate=2 June 2016}} However, Amychus do not have the ability to defend themselves in this way.{{cite web|last1=Ure|first1=Graeme|title=Island Refuge|url=https://www.nzgeo.com/stories/island-refuge/|website=New Zealand Geographic|accessdate=2 June 2016}}
Gallery
File:Amychus manawatawhi HT Habitus dorsal Whole.jpg]]
File:Amychus manawatawhi HT Habitus lateral Whole.jpg|Lateral view
File:Amychus manawatawhi HT Habitus frontal.jpg|Frontal
File:Amychus manawatawhi HT Habitus ventral Whole.jpg|Ventral
Distribution
This species has only been collected from Great Island and South West Island in the Three Kings group. These islands have been isolated from the New Zealand mainland since the late Miocene, and have numerous endemic species; it seems likely that A. manawatawhi evolved on the Three Kings and has always been restricted to those islands.
Ecology
The adult beetle has been collected at night from logs and the trunks of tree species such as Cordyline kaspar, Kunzea sinclairii and Meryta sinclairii, and by day from pitfall traps, litter samples, and under logs and rocks. Only a single larva has been collected, from South West Island.{{cite web|url=http://www.doc.govt.nz/Documents/science-and-technical/tsop20d.pdf|title=The Conservation Requirements of New Zealand's Nationally Threatened Invertebrates|last=McGuiness|first=C.A|publisher=Department of Conservation|accessdate=2016-05-29}}
Conservation
A. manawatawhi has been classified as "Naturally Uncommon" by the Department of Conservation. Goats were introduced to Great Island in 1889, but removed in 1946.
References
{{Reflist}}
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Category:Beetles described in 2010