1. Department of Entomology, Max Planck Institute for Chemical Ecology, Jena 07745, Germany
2. Department of Insect Symbiosis, Max Planck Institute for Chemical Ecology, Jena 07745, Germany
3. Department of Biological Sciences, Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan
4. Department of Zoology, Stockholm University, Stockholm SE-10691, Sweden
5. Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena 07745, Germany