[Cytophysiology of the glandular lobe of the corpora cardiaca: ergastoplasmic granules and their significance].

The number of ergastoplasmic granules in the glandular lobe of the corpora cardiaca is counted in Locusta migratoria migratorioides R. and F. and Schistocerca gregaria Forsk., male adults of different ages, grouped or isolated, having flown or not, and reared in various conditions of hygrometry and temperature. A good correlation was found between the number of ergastoplasmic granules and the utilization of the adipokinetic hormone. Ergastoplasmic granules may représent an original mechanism of hormonal storage used in view of heavy metabolic requirements.