1. Wisconsin Geological and
Natural History Survey, University of Wisconsin−Extension, 3817 Mineral Point Road, Madison, Wisconsin 53705, United States
2. USDA-Agricultural Research
Service, 2615 Yellowstone Drive, Marshfield, Wisconsin 54449, United States
3. Department of Statistics
and Department of Entomology, University of Wisconsin−Madison, 1300 University Avenue, Madison, Wisconsin 53706, United States
4. USDA-Agricultural Research Service, 2615 Yellowstone Drive, Marshfield, Wisconsin 54449, United States