none Newly-emerged both sexes of C. diurnii at laboratory conditions (24 plus or minus 1 degree C, 55% R.H.) were confined in rectangular plastic containers separately with water, 20% and 50% honey, glucose and sucrose. Adults in control were starved. Experiment was replicated five times. The results show neither of the sexes survived for more than 2 days without food and water and lived longest when fed with 50% honey. No significant difference was observed in the longevity of adults when fed with 20% and 50% glucose and sucrose. Techniques; Care in captivity; Nutrition; Feeding; Life cycle and development; Development Cotesia diurnii (Braconidae); Diet in captivity; Fluid composition effects on adult longevity; Diet; Composition, adult longevity relationship; Fluid feeding; Artificial diet composition effect on adult longevity; Longevity; Adults, influence of artificial diet composition