1 School of Biological Sciences, The University of Queensland, Brisbane, QLD 4069, Australia; Western Australian Museum, 49 Kew St, Welshpool, WA 6106, Australia. Electronic address: k.cheney@uq.edu.au.
2 Western Australian Museum, 49 Kew St, Welshpool, WA 6106, Australia; School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia. Electronic address: nerida.wilson@museum.wa.gov.au.