1. School of Natural Resource Sciences, Queensland University of Technology, Brisbane, Qld 4001, Australia;
2. Soil, Plant and Ecological Sciences Division, Lincoln University, Canterbury, New Zealand;
3. Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
4. Alan Fletcher Research Station, Queensland Department of Natural Resources & Mines and CRC for Australian Weed Management, Sherwood, Qld 4075, Australia;
5. Environmental Science, Policy and Management, Division of Insect Biology, University of California, Berkeley, California 94720-3112;
6. Australian National Insect Collection, CSIRO Entomology, Canberra ACT 2601, Australia;