Daily Rhythmicity of Corpus Allatum and Neurosecretory Cells in <i>Drosophila melanogaster</i> (Meig)

Abstract

Adult females of Drosophila melanogaster show a bimodal daily rhythmicity in the function of neurosecretory and corpus allatum cells. This result was obtained by measuring the size of the nuclei and determining the pattern of neurohormone secretion.