Laboratory of Entomology, Persimmon and Grape Research Centre, National Institute of Fruit Tree Science, Akitsu, Hiroshima, 729-24, Japan.
* Present address: Department of Seed Technology, College of Agriculture, Orissa Univesity of Agriculture and Technology, Bhubaneswar-751 003, Orissa, India.
The embryonic development of Aphis gossypii Glover showed 3 egg stages and 4 embryonic stages. The nucleus of the egg was divided superficially in a syncytial manner in egg-II stage. The egg-III stage was oval, flattened and surrounded by blastoderm. The eye spots appeared in embryoII stage. The preantennal segments, rostrum and legs appeared in the embryo-III stage. The embryoIV stage was laterally flattened and the different body parts, such as head, antennae, legs and abdominal segments were clearly visible.
