[Endocrine control of oogenesis during the fifth nymphal stage of Panstrongylus megistus (Hemiptera, Heteroptera: Reduviidae)].

Cautery of the neurosecretory cells of the pars intercerebralis, 48 hrs after feeding, of Panstrongylus megistus fifth instar, prevents the development of the ovaries, and stops the physiological processes that lead to the differentiation of oögonies into primary oöcytes.