The banding patterns of six soluble enzymes of a Sogatella furcifera Horvath population from Sri Lanka, maintained in glass-houses on rice variety TN 1 at University of Wales, Cardiff, were studied. Crude homogenates of macropterous adults of both sexes were analysed, using polyacrylamide electrophoresis. The following enzymes showed activity and were stained: esterase (EST), lactate dehydrogenase (LDH), phosphoglucomutase (PGM), hexokinase (HK), glucose-6-phosphate dehydrogenase (G-6-PDH) and malic enzyme (ME). Number and relative mobility of bands varied between enzyme systems.
