Photo shows a male adult of the Chinese citrus fly, Bactrocera minax (Diptera: Trypetidae) visiting male inflorescence of the Chinese chestnut, Castanea mollissima (Fagales: Fagaceae) in chestnut orchard. B. minax is an economically important insect pest of citrus crops that is widely distributed in China, and is also quarantined by other countries. Only after adult flies take supplementary nutrition, can their gonads gradually mature. In this issue, feeding behaviour of B. minax on male inflorescence of C. mollissima was reported (pp. 458-467). Photo by HE Zhang-Zhang at Bainihe Village, Jingmen City, Hubei Province in June, 2017.