Department of Apiculture and Sericulture, University of Agricultural Sciences and Veterinary Medicine, Mănăştur st, 3-5, 400372 Cluj-Napoca, Romania. mmadas@gmail.com.
Department of Functional and Evolutionary Entomology, University of Liège, Gembloux Agro-Bio Tech, Passage des Déportés, 2, 5030 Gembloux, Belgium. mmadas@gmail.com.