Starvation caused drastic reduction in total haemocyte count (THC) on day 4 in adults of both the sex of Dysdercus Koenigii. Starvation also significantly affected the differential haemocyte count (DHC). In the present insect mainly five types of haemocytes are reported for example Prohaemocytes (PRs), Plasmatocytes (PLs), Granulocytes (GRs), Adipohaemocytes (ADs) and Oenocytes (OEs). One type Vermicytes (VEs) is also reported but it is found during some stages of life of insect. Starvation caused drastic decrease in PLs population on day 4, but increase in population of ADs and OEs were noticed on the same day. Starvation also induced vacuole formation and degeneration in PRs, PLs, and GRs.