1. Department of Biological Sciences; The University of Tulsa; Tulsa OK 74104 USA
2. Department of Zoology; Faculty of Science; Charles University; Vinicna 7 128 44 Prague 2 Czech Republic
3. Department of Ecology; Faculty of Environmental Sciences; Czech University of Life Sciences Prague; Kamycka 129 165 21 Prague 6 Czech Republic
4. Department of Entomology and W.M. Keck Center for Behavioral Biology; North Carolina State University; Raleigh NC 27695 U.S.A