1. Evolutionary Genetics, Centre for Ecological and Evolutionary Studies; University of Groningen; Groningen The Netherlands
2. Laboratory of Entomology; Wageningen University; Wageningen The Netherlands
3. Theoretical Biology, Centre for Ecological and Evolutionary Studies; University of Groningen; Groningen The Netherlands
4. Behaviour & Evolution Group, Department of Zoology; University of Cambridge; Cambridge UK
5. Department of Entomology; University of Minnesota; St. Paul MN USA