Abstract: 【Aim】 This study aims to clarify the types and rules of grooming behaviors of adults of the Chinese citrus fly, Bactrocera minax, so as to provide a theoretical basis for the development of new targets and effective green pest control strategies to control B. minax. 【Methods】 The ethogram, average time of one grooming and proportion of frequencies of grooming behaviors of B. minax adults were analyzed with video technology and the detection and statistics system of grooming behaviors of B. minax adults based on computer vision recognition technology. 【Results】 The results showed that the female and male adults of B. minax have 9 and 8 types of grooming behaviors, respectively, including foreleg, hindleg, ommateum, antenna, mouthpart, abdomen, wing and midleg grooming for both female and male, and additional ovipositor grooming for the female. B. minax adults could optionally transit from non-grooming behaviors to all types of grooming behaviors, or transit from any type of grooming behavior to non-grooming behavior. There are significant differences in the proportion of frequencies and the average time of one grooming among all types of grooming behaviors. The proportions of frequencies of foreleg grooming of female and male adults (♀: 33.70%±2.53%; ♂: 33.89%±2.43%) and the average time of one wing grooming of female and male adults (♀: 15.58±2.55 s; ♂: 24.76±4.12 s) were the highest. 【Conclusion】 The time series of various types of grooming behaviors of B. minax adults is not fixed, but there are some intrinsic connections among these behaviours.

Key words: Bactrocera minax, grooming behavioral model, computer vision recognition technology, ethogram, behavioral frequency