关键词: 储藏小麦；粗脚粉螨；休眠体

Abstract: Objective To observe the morphological characteristics of hypopus of Acarus siro in the stored wheat in Linquan County， Anhui Province. Methods The wheat samples were collected from the wheat which had been stored for more than six months. The hypopodes of A. siro were isolated from the stored wheat， and were made into the glass specimens， and then were identified under an optical microscope. Results The structural features of the hypopus were found under the microscope， such as the setae of tibia and setae of genu， and the foot claws were well?developed， and the genital seta bases and the pair of sucker were almost at the same baseline. Conclusion The hypopodes of A. siro are found in the stored wheat， and therefore， the effective measures should be taken to control the hazard to the stored grain.

Key words: Stored wheat； Acarus siro； Hypopus