Fig. 2. Mass-corrected metabolic rate of Pringleophaga marioni larvae at different stages of freezing and thawing. Treatments: grey bars, –5.8°C; stippled bars, –6°C; hatched bars, –18°C. Means ± S.E.M. are presented. Although mass-specific data are presented here, analyses were performed as a repeated-measures analysis of covariance, with mass as a covariate. Bars with the same letter are not significantly different from one another (Tukey's HSD, P<0.05).