1. Department of Biology, The Pennsylvania State University, University Park, PA 16801, USA
2. Department of Entomology, The Pennsylvania State University, University Park, PA 16801, USA
3. Center for Chemical Ecology, The Pennsylvania State University, University Park, PA 16801, USA
4. W.K. Kellogg Biological Station, Michigan State University, Hickory Corners, MI 49060, USA
5. Department of Plant Biology, Program in Ecology and Evolutionary Biology, Michigan State University, East Lansing, MI 48824, USA