为害荔枝和龙眼的两种细蛾科昆虫

TWO GRACILLARIID INSECT PESTS ATTACKING LITCHI AND LONGAN

本文首次报道荔枝蒂蛀虫Conopomorpha sinensis和荔枝尖细蛾C.litchiclla在广东和福建省为害荔枝,并发现龙眼也是荔枝尖细蛾的寄主。订正了过去一直将这两个近缘种混淆起来误以为可可细蛾(国内称荔枝爻纹细蛾)Acrocercops cramerella的这一错误。事实上,国内迄今仍未发现可可细蛾的分布。本文详细地描述和比较了这两种细蛾各虫态的态,并简要地描述了它们的生物学特性。在食性方面首次发现荔枝蒂蛀虫既为害果又为害叶梢、花穗,而荔枝尖细蛾只为害叶梢。花穗而不取食果。

This paper reports for the first time that the gracillariid Conopomorpha sinensis Bradley and C. litchiella Bradley attack litchi and longan in Guangdong and Fujian Provinces. These two related species have long been considered as a single species and confused with the cocoa moth C. cramcrella, which, in fact, has not been found to attack litchi or longan and distributed in China. Detailed morphological descriptions of the developmental stages of these two species are presented and their bionomics are briefed. The morphology of the labial palpi differs in the male and female adults of C. sinensis, which damages the shoots and fruits of litchi and longan while C. ittchiella attacks : hoots anxd leaves but never damages fruits.