The present study provides new data concerning the morphology of the male genitalia of Aphididae and unifies their nomenclature. The structure of the male genitalia of 31 species from 26 genera of Aphididae was studied with light and scanning electron microscopy. In the studied species, the genitalia of males consist of a phallus composed of the sclerotized basal part with its articulation and a membranous apical part—an aedeagus. Laterally of the phallus, there is a pair of setose parameres. The shape of the aedeagus, the shape and length of the sclerotized basal part and its articulation as well as the variability of parameres in their form and the number of setae are recognized as important systematic signs of the genitalia. These characters are considered in conjunction with the phylogenetic relationships among the studied taxa.

中文翻译：

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蚜科（昆虫纲、半翅目）雄性生殖器的比较形态：第 1 部分


本研究提供了有关蚜科雄性生殖器形态的新数据并统一了它们的命名法。利用光学显微镜和扫描电镜研究了蚜科26属31种的雄性生殖器结构。在所研究的物种中，雄性的生殖器由阴茎组成，阴茎由带有关节的硬化基部和膜状顶端部分（阳茎）组成。阴茎外侧有一对具刚毛的副节。阳茎的形状、硬化基部的形状和长度及其关节以及副节的形状和刚毛数量的变异性被认为是生殖器的重要系统标志。这些特征与所研究的分类群之间的系统发育关系结合起来考虑。