The correlation of morphogenesis of the brain centers with embryonic molts in the locust <i>Locusta migratoria</i> (Orthoptera, Acrididae)
Studying the embryogenesis of the migratory locust Locusta migratoria has established the correlations of morphogenesis of the sensory compartments and associative centers of the brain with embryonic molts. In embryos, covered of the I embryonic cuticle, supraoesophagial ganglion missing formed neuropile centers, with the exception of commissure which will include a part in the central complex. In the embryo, covered with of II embryonic cuticle, there is an emerging optical lobes and the mushroom bodies in the form of calyx and pedunculus. In embryos with formed the III embryonic cuticle, in addition to the above structures, in the optical lobes are differentiated lamina, medulla and lobula, and in the central complex is formed protocerebral bridge and the central body consisting of two structures - ellipsoid and fan-shaped bodies. A comparison of the course of embryogenesis of the brain centers of insects with incomplete (Hemimetabola) and complete (Holometabola) transformation indicates that the most studied insects with complete metamorphosis there is a shift of limited II and III cuticular molts stages of individual development centers of the brain at different stages of postembryonic development.