none Reproduction; Reproductive behaviour; Life cycle and development; Life cycle; Developmental stages; Development; Growth; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Host parasite relationships; Abiotic factors; Physical factors Spodoptera littoralis (Noctuidae); Growth rate; Parasitised & unparasitised larvae; Hymenopteran parasites; Microplitis rufiventris; Parasite developmental stages & interaction with host; Reaction of host to parasite; Hymenopteran parasite, age susceptibility & phagocytosis of extra eggs Microplitis rufiventris (Braconidae); Oviposition; Rate, host instar age effect; Developmental stages; Duration in 4 seasons; Larva; Pupa; Duration in different instars of lepidopteran host; Embryology; Incubation period, temperature relationship; Lepidopteran hosts; Spodoptera littoralis; Development, preferred host instar & effect of superparasitism; Reaction of host to parasite; Lepidopteran host, susceptible ages & phagocytosis of extra eggs; Season; Immature stages duration, differences; Egypt; Temperature; Development rate relationship