Biometric Study of the Corpora Allata inScaptotrigona PosticaDuring Post-Embryonic Development

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Abstract
Summary Evidence from several papers indicates that corpora allata are important in insect development, at least during metamorphosis and the reproductive stage. In light of the morphological and functional variation among sexes and castes, a comparative study has been made on Scaptotrigona postica. At the beginning of metamorphosis the corpora allata of the queen were larger than those of the worker and male; this confirms the existence of a real dichotomy in the female caste. The corpora allata of the queen showed three cycles of activity, but those of the worker and male only one.