抄録
KNIPLING and MCGUIRE's (1966) equation describing the competition between pheromone traps and adult females for adult males was critically discussed. It was revealed that their equation could not properly deal with such competition because of the unrealistic assumptins they adopted in it. A new equation was developed in this paper, and the relationship between the number of males capatured in traps and the number of females mating was derived from it. Data from competition experiments were applied to this new equation and it was shown that it is applicable to a wide variety of trap-female competition situations.
