1. USDA, APHIS, Plant Protection Quarantine, Center for Plant Health Science and Technology, Mission Laboratory, Edinburg, Texas 78541, USA,(H. E. C.); (D. C. V.)
2. University of Texas Rio Grande Valley, Department of Biology, Edinburg, Texas 78539, USA,(E. L. S.); (C. V.)
3. North Carolina State University, Department of Entomology, Raleigh, North Carolina 27695, USA, (K. H.)