On the contribution of haemolymph to the salivary proteins of the red cotton bug,Dysdercus koenigii F. (Heteroptera,Pyrrhocoridae)

Summary Polyacrylamide gel electrophoresis of haemolymph and the salivary gland of adult maleDysdercus koenigii has been carried out. The presence of common bands in the electropherograms of the salivary gland and haemolymph shows the possible elaboration of haemolymph protein into the salivary glands as also evidenced by leucomethylene blue incorporation into the salivary gland lobules. The results are discussed in the light of our present state of knowledge.I wish to acknowledge the financial support from the C.S.I.R., New Delhi, India. Grateful acknowledgements are made to Prof. P.S. Ramamurty for encouragements, and to Zoology Department, Banaras Hindu University for the working facilities.