关键词: 粉螨, 速生薄口螨, 形态, 洋葱, 人体螨病

Abstract: Objective Objective To observe the external morphology of Histiostoma feroniarum hypopus under a light microscope. Methods Methods The samples were collected in a mushroom cultivation base，and the H. feroniarum hypopus was isolated and puri? fied. The slide samples were prepared and observed under an optical microscope. Results Results The back body of the H. feroniarum hypopus was flat with tiny bristles，the epidermis was of significant ossification，the ventral had four pairs of slender feet stretched，the sucker plate was prosperous in the end of the body，and the sucker plate had eight suckers. The gnathosoma was thin，long and highly specialized. Conclusion Conclusion The light microscopy shows the morphological characteristics of H. feroniarum hypopus， providing the basis for identifying and life cycle study.