1. Department of Biology, The University of New Mexico, Albuquerque, NM 87131 / cblancom@unm.edu
2. CINVESTAV, Section of Methodology of Science, Mexico 07000
3. University of Maryland, College Park, MD, 20742
4. Universidad Juárez del Estado de Durango, Av. Universidad s/n Gómez Palacio, Durango, México 35000
5. U.S. Department of Agriculture, Agricultural Research Service, Stoneville, MS 38776
6. USDA, Agricultural Research Service, Corn Insects and Crop Genetics Research Unit, Ames, IA 50011.
7. Department of Entomology, University of Minnesota, St. Paul, MN 55108