Gall anatomical and metabolic peculiarities are determined by the feeding habit of the gall inducer, but develop under the constraints of the host plants. The chewing habit of the Lepidoptera larvae imposes a high impact on the host plant cells, and supposedly drives peculiar structural and histochemical patterns. So, our starting point was the search of such patterns in literature, and the test of these traits on the Andescecidium parrai (Cecidosidae)-Schinus polygama (Anacardiaceae) system, as a case study in Chilean flora. The literature on the structure of lepidopteran galls in the temperate and tropical regions comprises 13 works, describing stems as the most frequent host organs, followed by leaves, buds, and flowers. As common structural traits of Lepidoptera galls, the literature converge in describing the processes of cell hypertrophy and hyperplasia, resulting in a variable number of common storage parenchyma layers, interspersed by the redifferentiated sclerenchyma, vascular, and typical nutritive cells around the larval chamber. These nutritive cells accumulate lipids and proteins, which support the lepidopteran larvae nutrition. As expected, the A. parrai galls follow the patterns herein described for the lepidoptera-induced galls, but with peculiarities associated with its host organ. Even though the Lepidoptera galls have destructive mouthparts and can induce large and complex galls, they cannot alter important conservative features of their hosts' organs.

瘿的解剖和代谢特性是由瘿诱导物的摄食习性决定的，但在寄主植物的限制下发展。鳞翅目幼虫的咀嚼习惯对宿主植物细胞产生很大影响，并被认为驱动了特殊的结构和组织化学模式。因此，我们的出发点是在文献中搜索此类模式，并在Andescecidium parrai（Cecidosidae）- Schinus polygama （Anacardiaceae）系统上测试这些性状，作为智利植物区系的案例研究。关于温带和热带地区鳞翅目虫瘿结构的文献包括 13 篇著作，描述茎是最常见的寄主器官，其次是叶、芽和花。作为鳞翅目虫瘿的共同结构特征，文献集中描述了细胞肥大和增生的过程，导致了数量不等的共同储存薄壁组织层，其间散布着幼虫室周围再分化的厚壁组织、血管和典型的营养细胞。这些营养细胞积累脂质和蛋白质，支持鳞翅目幼虫的营养。正如预期的那样，A. parrai虫瘿遵循本文描述的鳞翅目诱导虫瘿的模式，但具有与其宿主器官相关的特性。尽管鳞翅目虫瘿具有破坏性的口器并且可以产生大而复杂的虫瘿，但它们不能改变宿主器官的重要保守特征。