1. Institute of Plant Protection-National Research Institute, Department of Entomology and Animal Pests , Węgorka 20 , Poznan , Poland .
2. Museum and Institute of Zoology, Polish Academy of Sciences , Wilcza 64 , Warsaw , Poland .
3. Department of Mathematical and Statistical Methods, Poznan University of Life Sciences , Wojska Polskiego 28 , Poznan , Poland .