Abstract
A pile of legume seeds (25ml) were placed in a test tube (2.2cm in diameter). Five pairs of the adults were released in the test tube. After all the adults had died, number of eggs deposited on the surface of seeds were counted. This test was done for five kinds of seed of different sizes, (Pisum sativum>large Vigna angularis>V. unguiculata>normal V. angularis>V. radiata) respectively. In P. sativum both species of beetle (C. chinensis and C. maculatus) distributed their eggs evenly on each seed. While in the pulses having relatively smaller size of seed, C. maculatus could deposit their eggs much more deeper than C. chinensis. The measurement of the length, width and thickness of the body indicated that C. maculatus had apparently slimmer and flatter body than C. chinensis. This might enable C. maculatus to creep into the pile more easily than C. chinensis.
