Figure 9.

(A–C) Light micrographs of eggs of the Red Palm Weevil, R. ferrugineus (Oliver) showing the embryonic developmental sequences, extension and shortening of the germ band (400×). (A) 12–18 h-old egg showing the maximum extension of the germ band. (B) 18–24 h-old egg showing the beginning of shortening of the germ band. The contraction of the yolk plasmodium at this time, leaving a spacious haemocoele between itself and the body wall. (C) 36–42 h-old egg showing the short germ band when being nearing completion. The lateral body walls begin to grow up and eventually fuse in the mid-dorsal line.