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本文报道了用扫描电镜观察桔小实蝇Ｂａｃｔｒｏｃｅｒａｄｏｒｓａｌｉｓ、瓜实蝇Ｂ．ｃｕｃｕｒｂｉｔａｅ和南瓜实蝇Ｂ．ｔａｕ３龄幼虫头部、前气门、后气门和肛区形态特征的结果
This article reports the observation of Bactroceradorsalis and Melon B with scanning electron microscopy. cucurbitae and pumpkin fruit fly B. tau3 instar larvae head, the former valve, the valve and the anal region after the morphological characteristics of the results