Abstract
AbstractInjection of caffeine into adult male Ephestia kühniella induced a reduction in the amount of neurosecretory material in the resorcin fuchsin stainable (A‐) cells of the pars intercerebralis. Both hemel (hexamethyl melamine) and tepa (tris (1‐aziridinyl) phosphine oxide) treatments resulted in an increase in stainable neurosecretory products in the cytoplasm of the A‐cells. The increase after hemel treatment was largely a result of increased synthesis of neurosecretory material as indicated by increased nuclear volume and nuclear‐cytoplasmic ratio. No changes were induced by hemel in the corpora cardiaca and allata of the adult male E.kühniella. This disruption in neuroendocrine function is believed to be involved in the observed mating aberrations (permanent copulation and sterile matings) by adult males after hemel treatment.
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