在夏威夷群岛为害的实蝇只有三种,即:(1)柑桔小实蝇Dacus(Strumeta) dorsalisH endel; (2)瓜实蝇D. (Strumeta) cucurbitaeCoq uillett; (3)地中海实蝇Ceratitis capitata (Wiedmann)。这三个种的成虫特征已有相当的了解,并且大部分都已记载在文献中,然而,对幼虫期还了解得不够,同时现有的描述还没有研究到在种的鉴别上重要的特征。本文主要的目的是提供图片和描述资料,以助于对这三种实蝇的生活周期中的各个虫期进行鉴别。 There are only three fruit flies in the Hawaiian Islands, namely: (1) Dacus (Strumeta) dorsalisH endel; (2) Strumeta cucurbitaeCoq uillett; (3) Ceratitis capitata (Wiedmann). The adult characteristics of these three species have been well understood, and most have been documented in the literature, however, the larval stage is poorly understood, and the current description has not been studied to identify important features in the species . The main purpose of this paper is to provide graphic and descriptive data to help identify individual stages of the life cycle of these three fruit flies.