Befruchtung des Eies, superfizielle Furchung, Vorgänge der Keimanlagenbildung. Nach vollendeter Organdifferenzierung schlüpft die Prolarve aus dem Ei.

Embryonic development of the dragonfly Ischnura elegans. After the fertilization of the egg the superficial cleavage and the formation of the germ-band are shown. The subsequent blastokinesis of the embryo and the completion of organogenesis are followed by the hatching of the larva.