Fig. 3From: Biological parameters of two syrphid fly species Ischiodon scutellaris (Fabricius) and Episyrphus balteatus (DeGeer) and their predatory potential on wheat aphid Schizaphis graminum (Rondani) at different temperaturesComparative developmental times of different life stages of I. scutellaris and E. balteatus. The bars are means ± SEM, and an asterisk above a pair of the bars presents a significant difference between two predator species (P < 0.05)Back to article page