Adult female Pimpla turionellae were reared on chemically defined synthetic diets and the effects of various diet compositions on the egg production, emergence, sex ratio, protein and glycogen levels were investigated. The diet containing 50% honey had no significant effect on all the parameters and also on prolonged development time for egg production. Egg production, fertility and sex ratio increased in animals fed with diet having reduced glycogen. The adult P. turionellae could tolerate different diets without any serious problem during their development. An important concept in developing control diet was that components presented were digestible and were highly utilizable for adult P. turionellae. Pimpla turionellae (Ichneumonidae) Techniques; Care in captivity; Biochemistry; Reproduction; Reproductive behaviour; Ecology; Population dynamics; Population structure Pimpla turionellae; Diet in captivity; Artificial diet effect on reproductive productivity & sex ratio; Carbohydrates; Glycogen; Proteins; Egg laying; Oviposition; Reproductive productivity; Population sex ratio none