PERMEABILITY OF THE EGG SHELL OF ACHETA DOMESTICUS (L.), AND THE FATE OF THE VITELLINE MEMBRANE

Abstract

The egg shell of Acheta domesticus (L.) is permeable to dyes in the interval between the fragmentation of the endochorion and the secretion of the lipoid layer of the serosal cuticle, i.e. at the beginning of the water absorption period. The vitelline membrane persists throughout the whole of embryonic development, lying between the aforementioned layers from the beginning of water absorption.