Fig. 2. Effects of host dietary nutrient ratio on parasite burden (A), total parasite biomass (B) and individual parasite mass (C) of C. congregata, emerged and non-emerged from M. sexta larvae maintained over the fourth and fifth stadia on a chemically defined artificial diet having varying ratios of casein and sucrose. Dietary nutrient ratios shown relative to the level of each nutrient (C, casein; S, sucrose) in the basal chemically defined formulation where 1.0=90 g l. Significant differences (P<0.05) between emerged parasites on different diets are indicated by different lower case letters and differences between non-emerged parasites by different upper case letters.