TrehMI05512/TrehMI05512 and TrehMI05512/Df(2R)Exel6072 mutants exhibit near complete lethality during the pharate adult stage. TrehMI05512/TrehMI05512 mutants exhibit significantly increased levels of circulating trehalose, but no significant difference in circulating glucose, glycogen or TAG in third instar larvae, as compared to controls. TrehMI05512/TrehMI05512 mutant larvae display significantly decreased survival in response to starvation, and TrehMI05512/TrehMI05512, but not TrehMI05512/+, mutant larvae exhibit a significant increase in hemolymph volume, as compared to controls.