Fig. 2. (A) Body mass M_b change and (B) nitrogen assimilation N_i by Sephanoides sephaniodes on experimental diets with different concentrations of nitrogen and on a natural diet with ad libitum N-0 nectar and fruit flies (Nect+FF). Values are means ± S.E.M. Different letters indicate significant differences between groups after a post-hoc Tukey test.