1. Center for Medical, Agricultural, and Veterinary Entomology; US Department of Agriculture; Agricultural Research Service; Chemistry Research Unit; Gainesville FL 32608 USA
2. Department of Biochemistry, Biophysics, and Molecular Biology; Iowa State University; Ames IA 50011 USA
3. Biotechnology Research Center; The University of Tokyo; 1-1-1 Yayoi, Bunkyo-ku Tokyo 113-8657 Japan