A new species of the open-holed trapdoor spider genus Aname (Araneae: Mygalomorphae: Anamidae) from southern Western Australia
Mark S. Harvey (1,2), Mia J. Hillyer (1,2), Joel A. Huey (1,2,3,4) and Michael G. Rix (5)
(1) Department of Terrestrial Zoology, Western Australian Museum, Welshpool, Western Australia 6986, Australia.
(2) School of Biological Sciences, University of Western Australia, Crawley, Western Australia 6009, Australia.
(3) Adjunct, School of Natural Sciences, Edith Cowan University, Joondalup, Western Australia 6027, Australia.
(4) Present address: Biologic Environmental Survey, East Perth, Western Australia 6004, Australia.
(5) Biodiversity and Geosciences Program, Queensland Museum, South Brisbane, Queensland 4101, Australia.
The open-holed trapdoor spider genus Aname L. Koch, 1873 is endemic to Australia, and currently contains 49 named species. We describe a new species from the Malleee and Hampton bioregions of southern Western Australia, A. pulchella Harvey & Rix, sp. nov. We also supply sequence data for this species.
Publication date and citation
The open-holed trapdoor spider genus Aname L. Koch, 1873 is the most diverse anamid genus with 49 named species recorded from throughout Australia . The recent detection of a diagnostic morphological feature – the ventral asetose depression on the male pedipalpal tibia – and a comprehensive molecular phylogenetic analysis Harvey et al., 2018), confirms that the genus as currently recognised is monophyletic. Although two recent publications have described 20 new species from Western Australia (Harvey et al. 2012; Castalanelli et al. 2020; Harvey et al., submitted), there are numerous undescribed species that have been recognized using molecular and morphological data (Castalanelli et al. 2014; Harvey et al. 2018; MSH, JAH, unpublished data).
To further document the genus Aname in Australia, we here describe a new species from southern Western Australia.
This project represents a contribution to Taxonomy Australia (2020), a national initiative organised under the auspices of the Australian Academy of Science that brings together the taxonomic community to develop approaches that will significantly increase the rate at which new species are discovered, resolved and named, with a view to completely documenting the Australian biota with a generation.
Materials & Methods
The specimens examined in this study are lodged in the Western Australian Museum, Perth (WAM), and are preserved in 75% ethanol. Auto-montaged images were taken at different focal planes (ca. 20–30 images) with a Leica DFC500 digital camera attached to a Leica MZ16A stereo microscope, using Leica Application Suite (LAS) version 2.5.OR1 software.
Terminology follows Raven (1985a, 1985b) and Castalanelli et al. (2020). The following abbreviations are used: AME: anterior median eyes; ALE: anterior lateral eyes; PLE: posterior lateral eyes; PME: posterior median eyes. Pedipalp and leg measurements and ratios were calculated using the terminology and reference points defined by Castalanelli et al. (2020).
Morphological characters were scored using DELTA 1.4 (CSIRO, Canberra, Australia) (Dallwitz et al. 2010), which was also used to generate a natural language description that was subsequently edited further.
Part of this study was funded by the Gorgon Barrow Island Net Conservation Benefits Fund. The Fund is administered by the Department of Biodiversity, Conservation and Attractions and approved by the Minister for Environment after considering advice from the Gorgon Barrow Island Net Conservation Benefits Advisory Board. Additional funding was provided by the Australian Biological Resources Study Taxonomy Research Grants Scheme (ABRS Grant No. RG18-03). We thank Julianne Waldock and Sarah Comer for their collecting efforts.
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Castalanelli, M.A., Framenau, V.W., Huey, J.A., Hillyer, M.J. and Harvey, M.S. (2020). New species of the open-holed trapdoor spider genus Aname (Araneae: Mygalomorphae: Anamidae) from arid Western Australia. Journal of Arachnology 48: 000-000.
Harvey, F.S.B., Framenau, V.W., Wojcieszek, J.M., Rix, M.G. and Harvey, M.S. (2012). Molecular and morphological characterisation of new species in the trapdoor spider genus Aname (Araneae: Mygalomorphae: Nemesiidae) from the Pilbara bioregion of Western Australia. Zootaxa 3383: 15–38. doi: 10.11646/zootaxa.3383.1.3
Harvey, M.S., Gruber, K., Hillyer, M.J. and Huey, J.A. (submitted). Five new species of the open-holed trapdoor spider genus Aname (Araneae: Mygalomorphae: Anamidae) from Western Australia, with a revised generic placement for Aname armigera. Records of the Western Australian Museum 00: 000-000.
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