本篇根据国外近期的研究结果，对寡鬃实蝇属ＤａｃｕｓＦａｂｒｌｃｉｕｓ内部分有害亚属的鉴别特征和划分依据，以及３种重要害虫：葫芦寡鬃实蝇Ｄ．（Ｄａｃｕｓ）ｂｉｖｉｔｔａｔｕｓ、埃塞俄比亚寡鬃实蝇Ｄ．（Ｄｉｄａｃｕｓ）ｃｉｌｉａｔｕｓ和西瓜寡鬃实蝇Ｄ．（Ｄｉｄａｃｕｓ）ｖｅｒｔｅｂｒａｔｕｓ作一总的介绍。为便于掌握有关亚属和种的鉴别特征，特编制分亚属和种的检索表，并附特征图，以供参考。 Based on the results of recent studies in foreign countries, this paper analyzes the distinguishing features and division basis of the partial subgenus of Dacus Fabrlcius in the genus Dacus Fabrlcius and three important pests: (Dacus) bivittatus, Ethiopia oligidiformes D (Didacus) ciliatus and watermelon oligo-mandarin fly D. (Didacus) vertebratus for a general introduction. In order to facilitate the identification of subgenus and species identification features, special sub-sub-genus and species of the preparation of the table, with the characteristics of the map for reference.