1. Department of Entomology, University of Manitoba, 12 Dafoe Rd., Winnipeg, MB R3T 2N2, Canada
2. USDA-ARS, Center for Medical, Agricultural and Veterinary Entomology, 1600 S.W. 23rd Drive, Gainesville, FL 32608, USA
3. Department of Entomology, Texas A & M University, College Station, TX 77843, USA
4. USDA-ARS, Knipling-Bushland US Livestock Insects Research Laboratory, 2700 Frederickburg Rd., Kerrville, TX 78028, USA
5. Department of Entomology, Texas A&M AgriLife Research and Extension Center, 1229 N US Hwy 281, Stephenville, TX 76401, USA
6. Department of Entomology, University of Nebraska, Lincoln, NE 68583, USA