Front cover: Photo shows the solanum mealybug, Phenacoccus solani (Hemiptera: Pseudococcidae) infesting potato bud. P. solani is a newly recorded pest in mainland China. It has wide habitat suitability and presents a great potential threat to agricultural production and ecological environment in China. In this issue, a study of the biological characteristics of P. solani was reported (pp. 871-876). Photo by HUANG Jun at the suburb of Jinhua, Zhejiang in August, 2018.