Abstract:[Aim] The selectivity of sites for laying eggs by Ophraella communa females was studied.[Method] Under the laboratory conditions, the mating and egg deposition behaviors, including the choice of oviposition sites and the content of chlorophyll b in leaves of A. artemisiifolia were recorded. To do so, a pair of adults were placed on a common ragweed plant in a rearing cage and the mating duration, the number of eggs laid, and the time interval between the laying of two eggs were recorded. In addition, 10 pairs of adults were randomly placed on a common ragweed plant which were marked in five sections (0~10, 11~20, 21~30, 31~40 and 41~50 cm) in a cage, the site selection of the female to lay her eggs was recorded, and this experiment was replicated five times. Once completed, to calculate the content of chlorophyll b, the leaves of common ragweed from the five sections were treated with acetone homogenate method, and light absorption values were determined by ultraviolet spectrophotometer at 645 nm and 663 nm.[Result] The average mating time was 96.09 min. It took on average 45 minutes for a female to find a suitable place to lay eggs. In the process of laying eggs, females preferred laying eggs on the back of the common ragweed leaves. and used her mouthparts to clean each newly laid egg. In a 50 cm tall common ragweed plant, females preferred to lay their eggs at the height of 21~30 cm or 31~40 cm. There was a significant positive correlation between the number of eggs and the content of chlorophyll b in a given section of the plant.[Conclusion] Females of O. communa prefer laying eggs on the back of leaves with high chlorophyll b content, and may use visual recognition of leaf color to select and locate egg deposition sites.