Diversity and distribution of the New Zealand endemic mite harvestman genus Aoraki (Arachnida, Opiliones, Cyphophthalmi, Pettalidae), with the description of two new species
Sarah L. Boyer
A * , Shannon R. Dohr A , Madison S. Tuffield A , Yoonjin Shu A , Ciara D. Moore A , Katherine M. Hahn A , Rainah S. Ward A , Phuong Nguyen A and Rina Morisawa A
+ Author Affiliations
- Author Affiliations
A Biology Department, Macalester College, 1600 Grand Avenue, Saint Paul, MN 55105, USA.
Invertebrate Systematics 36(4) 372-387 https://doi.org/10.1071/IS21044
Submitted: 5 June 2021 Accepted: 13 November 2021 Published: 16 May 2022
© 2022 The Author(s) (or their employer(s)). Published by CSIRO Publishing.
Abstract
New Zealand is home to 30 recognised endemic mite harvestman species and subspecies, 26 of which were described by Ray Forster in 1948 and 1952. These species comprise three genera: Rakaia Hirst, 1926, Neopurcellia Forster, 1948, and Aoraki Boyer & Giribet, 2007. Here, we focus on the diversity and distribution of Aoraki: we describe A. grandis Boyer, Tuffield & Dohr, sp. nov. and A. meridialis Boyer, Hahn & Ward, sp. nov. and we synonymise A. granulosa (Forster, 1952) with A. tumidata (Forster, 1948), bringing the total of named species and subspecies to twelve, and extending the southern range of the genus by over 100 km. Our phylogenetic analysis revealed three major lineages within the genus characterised by differing levels of granulation of the male fourth tarsus. We report striking variation in the range size and level of genetic structuring present within currently recognised species and subspecies of Aoraki, and propose future studies to address evolutionary, biogeographic and taxonomic questions in the group.
urn:lsid:zoobank.org:pub:BDD4D61C-B099–44D5–949C-34AD217A016F.
Keywords: Arachnida, biogeography, Cyphophthalmi, endemism, New Zealand, Opiliones, systematics, taxonomy.
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