Dorsal and ventral sides of the forewing of Aphis fabae (Scopoli 1763) (Sternorrhyncha, Hemiptera) were examined by scanning electron microscopy. Reinforcement elements on their surface as well as scale-like elements were described. Using histological methods, cross-sections of the material were done. They showed a two-layered membrane with a circular foramen inside. The course of veins and places of their bifurcation were followed. Common stem of radius (R), media (M), and cubitus anterior (CuA) veins were composed of separate tracheae, which ran separately at the beginning, then continued in a single tunnel, and finally disappeared. Nerves were not observed. Neither were tracheae visible on the further course of those veins. The presence of a devoid-of-trachea costal vein was confirmed. Under scanning electron microscope, convex reinforcements on dorsal side of the wing turned out to be more sclerotized parts of chitin, not giving a zigzag-like profile of the wing on sections. In this paper, we show for the first time a cross-section of a very delicate wing of an aphid representative.

中文翻译：

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蚕蛹 (Scopoli 1763) (半翅目, Sternorrhyncha) 的前翅：形态学和组织学研究

通过扫描电子显微镜检查蚕豆蚜（Scopoli 1763）（Sternorrhyncha，Hemiptera）前翅的背侧和腹侧。描述了它们表面上的增强元件以及鳞片状元件。使用组织学方法，完成了材料的横截面。他们展示了一个两层的膜，里面有一个圆形的孔。跟踪静脉的路线和它们分叉的地方。桡动脉（R）、中脉（M）和肘前静脉（CuA）的共同茎由独立的气管组成，开始时分开走行，然后在一个隧道中延续，最后消失。未观察到神经。在这些静脉的进一步路线上也看不到气管。证实存在无气管肋静脉。在扫描电子显微镜下，机翼背侧的凸形增强物被证明是甲壳质更加硬化的部分，而不是在截面上呈现出锯齿状的机翼轮廓。在本文中，我们首次展示了蚜虫代表的非常精致的翅膀的横截面。