none B. ?hancocki (Wlkn.) is a larval ectoparasite of C. ptychora (Meyr.), a major pest of cowpea at Ile-Ife, Nigeria. Parasitism occurred in the field all the year round, varying from 0 to 65 multiplied by 9% and with the highest incidence from September to February. In the laboratory, the fecundity of the parasite was low, averaging about six eggs per female. The life-cycle was completed in ten days. Mating occurred soon after emergence, and the preoviposition period lasted about 2-3 days. Unmated females rarely laid eggs, and their life-span averaged six days as compared to 14 days for mated females. Animals and man; Control; Biological control; Life cycle and development; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Host parasite relationships; Land and freshwater zones; Ethiopian region Cydia ptychora (Tortricidae); Control by; Potential; Hymenopteran parasites; Bracon? hancocki; Parasite life cycle & prevalence; Prevalence; Bracon? hancocki (Hymenoptera), seasonal incidence; Nigeria; Ile Ife; Prevalence of hymenopteran parasites & control potential Bracon? hancocki (Braconidae); Control of; Cydia ptychora (Lepidoptera); Potential; Life cycle and development; Lepidopteran host; Lepidopteran hosts; Cydia ptychora; Life cycle & prevalence; Prevalence; Seasonal incidence on Cydia ptychora (Lepidoptera); Nigeria; Ile Ife; Life cycle & prevalence on lepidopteran host, control potential