Morphological and Histological Observations on the Hair Brush of Endoclita Vietnamensis (Lepidoptera, Hepialidae)

This study investigates the hair brush on the postpedes of male Endoclita vietnamensis, a significant pest of eucalyptus trees in China, using electron microscopy. The hair brush consists of large, flattened, pale yellow scales attached to the epidermis, with a hollow interior featuring ducts, pores, and ridges. Tissue cells in the tibial segment show features like mitochondria and endoplasmic reticulum, indicating secretory activity. The research identifies the pheromone gland's location and structure, providing a basis for future studies on E. vietnamensis communication and the development of pheromone-based pest control methods.