Embryology of insects and myriapods; Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching embryologyofinse00joha Year: 1941 ORTHOPTEROIDEA (PANORTHOPTERA) 213 convex on one side, straight on the other, and much compressed (Fig. 128), with the micropyles scattered over a quadrant of its upper half. The first maturation division of the egg nucleus occurs before the egg is enclosed Fig. 128.—BlaUella. Lateral aspect of egg. A, before cleavage. B, after cleavage. {From Wheeler.) in its ootheca. After fertiliz

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Embryology of insects and myriapods; Embryology of insects and myriapods; the developmental history of insects, centipedes, and millepedes from egg desposition [!] to hatching embryologyofinse00joha Year: 1941 ORTHOPTEROIDEA (PANORTHOPTERA) 213 convex on one side, straight on the other, and much compressed (Fig. 128), with the micropyles scattered over a quadrant of its upper half. The first maturation division of the egg nucleus occurs before the egg is enclosed Fig. 128.—BlaUella. Lateral aspect of egg. A, before cleavage. B, after cleavage. {From Wheeler.) in its ootheca. After fertilization the cleavage cells migrate to the egg surface, the blastoderm being completed in about 60 hours at 27°C. After reaching the surface some of the cleavage cells turn back into the

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