The electrophoretic protein profile of various tissues namely fatbody, haemolymph and ovary were analysed with reference to interrelationship among the tissues of control female insects during their first reproductive cycle of House cricket Gryllodes sigillatus.The reproductive cycle of insects were divided into three phases based on the accumulation of vitellogenin namely previtellogenic, vitellogenic and postvitellogenic phases. During the first reproductive cycle of adult insects the two fractions viz.,2 and 8 could be detected only in control female insects. Of the two fractions, fractions 2 was recorded in all the tissues of the control insects, which indicates the appearance of an extra ovarian fraction that could be synthesized in fatbody, released into haemolymph and sequestered in the ovary. Fraction 8 was detected only in the ovary of control insects and was absent in the fatbody, and haemolymph indicating the intraovarian synthesis. Further, certain fraction were recorded in the fat body and haemolymph of control insects. Since, these fractions were not seen in ovary, they might be involved in the general metabolism of the insect.
