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Systematics, phylogeny and biogeography
RESEARCH ARTICLE

The systematics and biology of the spider genus Nephila (Araneae : Nephilidae) in the Australasian region

Mark S. Harvey A D , Andrew D. Austin B and Mark Adams C
+ Author Affiliations
- Author Affiliations

A Department of Terrestrial Invertebrates, Western Australian Museum, Locked Bag 49, Welshpool DC, WA 6986, Australia.

B Australian Centre for Evolutionary Biology and Biodiversity, School of Earth & Environmental Sciences, The University of Adelaide, SA 5005, Australia.

C Evolutionary Biology Unit, South Australian Museum, North Terrace, Adelaide, SA 5000, Australia.

D Corresponding author. Email: mark.harvey@museum.wa.gov.au

Invertebrate Systematics 21(5) 407-451 https://doi.org/10.1071/IS05016
Submitted: 20 April 2005  Accepted: 10 July 2007   Published: 7 November 2007

Abstract

Five species of the nephilid genus Nephila Leach are found in the Australasian region, which for the purposes of this study was defined as Australia and its dependencies (including Lord Howe I., Norfolk I., Christmas I., Cocos (Keeling) Is), New Guinea (including Papua New Guinea and the Indonesian province of West Papua), Solomon Is, Vanuatu, New Caledonia, Fiji, Tonga, Niue, New Zealand and other parts of the south-west Pacific region. All species are redescribed and illustrated. Nephila pilipes (Fabricius) occurs in the closed forests of eastern and northern Australia, New Guinea, Solomon Is and Vanuatu (through to South-East Asia); N. plumipes (Latreille) is found in Australia (including Lord Howe I. and Norfolk I.), New Guinea, Vanuatu, Solomon Is and New Caledonia; N. tetragnathoides (Walckenaer) inhabits Fiji, Tonga and Niue; N. antipodiana (Walckenaer) occurs in northern Australia (as well as Christmas I.), New Guinea and Solomon Is (through to South-East Asia); and N. edulis (Labillardière) is found in Australia (including Cocos (Keeling) Is), New Guinea, New Zealand and New Caledonia. Epeira (Nephila) walckenaeri Doleschall, E. (N.) hasseltii Doleschall, N. maculata var. annulipes Thorell, N. maculata jalorensis Simon, N. maculata var. novae-guineae Strand, N. pictithorax Kulczyński, N. maculata var. flavornata Merian, N. pictithorax Kulczyński, N. maculata var. flavornata Merian, N. maculata piscatorum de Vis, and N. (N.) maculata var. lauterbachi Dahl are proposed as new synonyms of N. pilipes. Nephila imperialis var. novaemecklenburgiae Strand, N. ambigua Kulczyński, N. sarasinorum Merian and N. celebesiana Strand are proposed as new synonyms of N. antipodiana. Meta aerea Hogg, N. meridionalis Hogg, N. adelaidensis Hogg and N. meridionalis hermitis Hogg are proposed as new synonyms of N. edulis. Nephila picta Rainbow is removed from the synonymy of N. plumipes and treated as a synonym of N. edulis, and N. nigritarsis insulicola Pocock is removed from the synonymy of N. plumipes and treated as a synonym of N. antipodiana. Allozyme data demonstrate that N. pilipes is distinct at the 80% FD level from N. edulis, N. plumipes and N. tetragnathoides. Nephila plumipes and N. tetragnathoides, deemed to represent sister-taxa owing to the shared presence of a triangular protrusion of the male pedipalpal conductor, were found to differ at 15% FD in the genetic study. No genetic differentiation was found between 10 populations of N. edulis sampled across mainland Australia. Species of the genus Nephila have been extensively used in ecological and behavioural studies, and the biology of Nephila species in the Australasian region is extensively reviewed and compared with studies on Nephila species from other regions of the world.


Acknowledgements

Numerous people have generously supplied much of the material utilised in this study. In particular, we wish to thank those people who kindly obtained at our request the live material utilised in the allozyme analysis: Anthony Desmond, Mark Elgar, Gordon Graham, Bill Humphreys, Jane Rienks, Erich Volschenk, Julianne Waldock and Doug Wallace. Funds were made available for the collection of material by the following organisations: the Australian Biological Resources Study; National Geographic Society, the American Museum of Natural History and the Queensland Museum, facilitated by Dr N. I. Platnick and Dr R. J. Raven, respectively; Adelaide University and the Australian Entomological Society for a research grant that enabled the collection of live material from Uluru.


We wish to thank the many curators who allowed access to the collections in their care: G. Brown (NTMAG), C. E. Griswold (CAS), H. Dastych (ZMH), J. W. Early (AMNZ), M. R. Gray, R. Harris and G. Milledge (AM), G. Hall (NZAC), R. B. Halliday (ANIC), A. Hänggi and J. Ineichen-Reidi (NMB), P. D. Hillyard (BMNH), D. Hirst (SAM), T. Huflejt (MZPW), T. Kronestedt (SMNH), S. Larcher (USNM), L. Leibensperger and H. W. Levi (MCZ), G. Milledge (MV), M. Moritz (ZMB), E. J. Nieukerken (RMNH), N. I. Platnick (AMNH), R. J. Raven (QM), C. Rollard (MNHN), U. Schreiber (SMF), P. Sirvid and L. J. Boutin (MNZ), S. Swift (BPBM) and E. Turner (TMAG). Permission to export specimens from Fiji was graciously granted by Mr J. Vakabua (Ministry of Agriculture, Fisheries and Forests, Fiji). Volker Framenau and Michael Rix kindly allowed us to publish their photographs of Nephila. We also thank Carolyn Horne, Malcolm Krieg and Julianne Waldock for technical assistance, Bradley Durrant for the habitus drawings, and Matjaž Kuntner, Volker Framenau, Gustavo Hormiga and Mark Elgar for their extremely helpful comments on a draft of the manuscript.


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Appendix 1.  Index to species names
Valid names in italics, synonyms in Roman. [Note that numbers refer to page numbers in the PDF version of this paper]
A1