Nihoa (spider) explained

Nihoa is a genus of South Pacific brushed trapdoor spiders first described by Tracey Churchill & Robert Raven in 1992. It is named after the island Nihoa, where the type species (N. mahina) is endemic.^[1]

Male Nihoan trapdoor spiders (N. hawaiiensis) grow to almost long, including chelicerae. The females are larger, growing up to .^[2]

Species

it contains twenty-three species:^[3]

Nihoa annulata (Kulczyński, 1908) – New Guinea
Nihoa annulipes (Thorell, 1881) – New Guinea
Nihoa aussereri (L. Koch, 1874) – Palau Is.
Nihoa bisianumu Raven, 1994 – New Guinea
Nihoa courti Raven, 1994 – New Guinea
Nihoa crassipes (Rainbow, 1898) – New Guinea
Nihoa gressitti Raven, 1994 – New Guinea
Nihoa gruberi Raven, 1994 – Papua New Guinea (New Ireland)
Nihoa hawaiiensis (Raven, 1988) – Hawaii
Nihoa itakara Raven, 1994 – New Guinea
Nihoa kaindi Raven, 1994 – New Guinea
Nihoa karawari Raven, 1994 – New Guinea
Nihoa lambleyi Raven, 1994 – New Guinea
Nihoa madang Raven, 1994 – New Guinea
Nihoa mahina Churchill & Raven, 1992 (type) – Hawaii
Nihoa maior (Kulczyński, 1908) – New Guinea
Nihoa mambulu Raven, 1994 – Solomon Is.
Nihoa pictipes (Pocock, 1899) – New Guinea, Papua New Guinea (New Britain, New Ireland), Solomon Is.
Nihoa raleighi Raven, 1994 – New Guinea
Nihoa tatei Raven, 1994 – New Guinea
Nihoa vanuatu Raven, 1994 – Vanuatu
Nihoa variata (Thorell, 1881) – New Guinea
Nihoa verireti Raven, 1994 – New Guinea

Churchill. T. B.. Raven. R. J.. 1992. Systematics of the intertidal trapdoor spider genus Idioctis (Mygalomorphae: Barychelidae) in the western Pacific with a new genus from the northeast.. Memoirs of the Queensland Museum. 9–30. 32.
Raven. Robert J.. A revision of the mygalomorph spider genus Idioctis (Araneae, Barychelidae). American Museum Novitates. 2929. 1–14. 1988-12-22. American Museum of Natural History.
Gen. Nihoa Raven & Churchill, 1992. World Spider Catalog Version 20.0. 2019-05-16. 2019. Natural History Museum Bern. 10.24436/2.