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<p><i>Copris</i> are part of the Scarabaeidae family of Coleoptera. <i>Copris</i> are dung beetles or coprophagous beetles. These insects are called tunnelers because they excavate channels in the substrate. They use dead organisms and non-living organic compounds as a nutrient source. By breaking down dead matter, they provide nutrients that are important to the environment and necessary for the survival of other organisms. No studies have yet examined the midgut structure and Malpighian tubules of <i>Copris</i>. Therefore, this study investigated the histo-anatomical structure of the midgut and Malpighian tubules of <i>Copris felschei</i> Reitter, 1892 (Coleoptera: Scarabaeidae) using light and scanning electron microscopy (SEM) in detail. The midgut of <i>C. felschei</i> represents the largest part of the alimentary canal. Muscle layers and a monolayer of cylindrical epithelium surround the midgut wall. A peritrophic membrane envelops food in the midgut lumen, and crystals were observed within the lumen. The surface of the midgut has regenerative crypts and tracheae. The Malpighian tubules are arranged in two pairs and connect proximally between the midgut and hindgut. The Malpighian tubules are composed of a single layer of cuboidal epithelium. Numerous balloon-like tracheae were observed interspersed between the midgut and Malpighian tubules. Light and SEM images of the tracheae reveal a spongy structure with hollow chambers. These findings are anticipated to advance future research and deepen our understanding of the alimentary canal in Coleoptera, particularly within the Scarabaeidae family.</p>

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The anatomy and histology of the midgut and Malpighian tubules of Copris felschei Reitter, 1892 (Coleoptera: Scarabaeidae)

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  • 发表日期：

    2025年1月11日

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  • Nurcan Özyurt Koçakoğlu,
  • Doğan Erhan Ersoy,
  • Hicret Arslan,
  • Selami Candan

摘要

Copris are part of the Scarabaeidae family of Coleoptera. Copris are dung beetles or coprophagous beetles. These insects are called tunnelers because they excavate channels in the substrate. They use dead organisms and non-living organic compounds as a nutrient source. By breaking down dead matter, they provide nutrients that are important to the environment and necessary for the survival of other organisms. No studies have yet examined the midgut structure and Malpighian tubules of Copris. Therefore, this study investigated the histo-anatomical structure of the midgut and Malpighian tubules of Copris felschei Reitter, 1892 (Coleoptera: Scarabaeidae) using light and scanning electron microscopy (SEM) in detail. The midgut of C. felschei represents the largest part of the alimentary canal. Muscle layers and a monolayer of cylindrical epithelium surround the midgut wall. A peritrophic membrane envelops food in the midgut lumen, and crystals were observed within the lumen. The surface of the midgut has regenerative crypts and tracheae. The Malpighian tubules are arranged in two pairs and connect proximally between the midgut and hindgut. The Malpighian tubules are composed of a single layer of cuboidal epithelium. Numerous balloon-like tracheae were observed interspersed between the midgut and Malpighian tubules. Light and SEM images of the tracheae reveal a spongy structure with hollow chambers. These findings are anticipated to advance future research and deepen our understanding of the alimentary canal in Coleoptera, particularly within the Scarabaeidae family.