The present study provides new data related to the morphology of the male genitalia of Aphididae. The structure of the male genitalia of 39 species from 23 genera of Aphididae was studied using light and scanning electron microscopy. In the species studied, the genitalia of males consist of a phallus composed of the sclerotized basal part with its articulation and a membranous apical part—an aedeagus as well as parameres. This state probably represents the hypothetical plesiomorphic condition of the external male genitalia of aphids. According to the results of the present study, the male genitalia vary among subfamilies (the most varied in Lachninae). Both the phallus and parameres show great variability in their form and the number of setae and may provide characters of taxonomic and diagnostic importance. The shape, size, and modification of parameres are considered in conjunction with the phylogenetic relationships among the studied taxa. Compared with Lachninae, Greenideinae, Aiceoninae, the external genitalia of Aphidinae are less specialized, having many features in common with those of drepanosiphine aphids and differing little from the hypothetical condition. In dwarfish males of Anoeciinae, Thelaxinae, Hormaphidinae, and Eriosomatinae, the miniaturization of the body size affects on the modification of genitalia, mostly parameres. However, the homology of non-modified and modified structures of parameres is not clear.

中文翻译：

---

蚜科（昆虫纲，半翅目）雄性生殖器的比较形态学：第 2 部分

本研究提供了与蚜科雄性生殖器形态相关的新数据。使用光学和扫描电子显微镜研究了蚜科 23 属 39 种雄性生殖器的结构。在所研究的物种中，雄性的生殖器由具有关节的硬化基部和膜质顶端部分组成的阴茎组成——aedeagus 和 parameres。这种状态可能代表了蚜虫雄性外生殖器的假想拟异形状态。根据本研究的结果，男性生殖器在亚科之间有所不同（在 Lachninae 中变化最大）。阳具和无毛动物在它们的形式和刚毛的数量上都表现出很大的变异性，并且可能提供在分类学和诊断方面具有重要意义的特征。形状、大小、参数的修饰和修饰与所研究的分类群之间的系统发育关系一起考虑。与Lachninae、Greenideinae、Aiceoninae 相比，Aphidinae 的外生殖器特异性较低，与drepanosiphine 蚜虫具有许多共同特征，与假设条件相差不大。在 Anoeciinae、Thelaxinae、Hormaphidinae 和 Eriosomatinae 的侏儒雄性中，体型的小型化影响生殖器的修饰，主要是parameres。然而，参数的未修饰和修饰结构的同源性尚不清楚。具有许多与镰刀菌蚜虫相同的特征，并且与假设条件几乎没有区别。在 Anoeciinae、Thelaxinae、Hormaphidinae 和 Eriosomatinae 的侏儒雄性中，体型的小型化影响生殖器的修饰，主要是parameres。然而，参数的未修饰和修饰结构的同源性尚不清楚。具有许多与镰刀菌蚜虫相同的特征，并且与假设条件几乎没有区别。在 Anoeciinae、Thelaxinae、Hormaphidinae 和 Eriosomatinae 的侏儒雄性中，体型的小型化影响生殖器的修饰，主要是parameres。然而，参数的未修饰和修饰结构的同源性尚不清楚。