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cockroaches are dioecious and both sexes have well developed reproductive oragns. Sperms are transferred through spermatophores. their fertilised eggs are encased in capsules called oothecae. Ootheca is a dark reddish to blackish brown capsule, about 3/8" (8mm) long. They are dropped or glued toa suitable surface, usually ina crack or crevice of high relative humidity near a food source. On an average female produce 9-10 oothecae, each containing 14-16 eggs

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