1. General Zoology, Institute for Biology, Martin Luther University Halle-Wittenberg, Hoher Weg 8, 06120 Halle (Saale), Germany
2. Zoology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
3. Department of Environmental Science, Baylor University, Waco, TX 76706, USA
4. Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
5. Pharmacognosy Group, Department of Pharmaceutical Biosciences, Biomedical Centre, Uppsala University, P.O. Box 591, SE-751 24 Uppsala, Sweden
6. Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Koom 32512, Egypt