Investigations concerning the influence of four weevil densities, three oviposition/feeding periods, two maize genotypes (susceptible and resistant), and three kernel densities on the aggregation of maize weevil (MW),Sitophilus zeamaisMotschulsky, eggs indicated that each had a significant impact on egg distribution. Results showed that egg aggregation generally increased with increasing MW density and duration of oviposition/feeding period, but the specific response depended on kernel density and maize genotype. These findings serve to illustrate the influence of four environmental factors on the biology and ecology of the MW, as quantified by changes in egg distribution, and may aid in the identification of factors (such as resistant varieties) that can be manipulated to the detriment of the insect pest in a pest management program on stored grains.