1. Center for Insect Science University of Arizona Tucson Arizona
2. Department of Biological Sciences Rowan University Glassboro New Jersey
3. Department of Entomology University of California Davis California
4. Department of Biology York University Toronto Ontario Canada
5. Carl Hayden Bee Research Center USDA Tucson Arizona
6. Department of Entomology University of Arizona Tucson Arizona
7. Department of Biology University of Pennsylvania Philadelphia Pennsylvania