1. Laboratory of Zoology, Research Institute for Biosciences University of Mons Place du Parc 20 Mons 7000 Belgium
2. Department of Zoology, Division of Functional Morphology, INSECT Lab Stockholm University Svante Arrhenius väg 18b Stockholm 11418 Sweden
3. Department of Biology The Pennsylvania State University University Park PA 16802 U.S.A.
4. Department of Entomology The Pennsylvania State University University Park PA 16802 U.S.A.