Abstract
Agar-gel electrophoresis revealed species specific difference in esterase isozymes of seven species of bees and wasps; Apis mellifera, Apis indica japonica, Xylocopa appendiculata circumvolans, Anthophora quadrifasciata, Polistes chinensis antennalis, Polistes jadwigae and Megachile nipponica. Esterase isozymes of two species of Apis bees and two species of Polistes wasps are acetylcholine esterases. Esterase activity of the female tissue was much higher than that of the male both in Apis mellifera and in Polistes jadwigae.
