1. International Centre of Insect Physiology and Ecology PO Box 30772‐00100 Nairobi Kenya
2. Faculty of Natural Sciences I Institute of Biology Martin Luther University Halle‐Wittenberg, Domplatz 4 06108 Halle (Saale) Germany
3. Plant Research International Wageningen UR PO Box 16, 6700AA Wageningen The Netherlands