This paper presents the first description of the morphology of Demodex brevis examined by scanning electron microscopy. The authors found that D. brevis can be distinguished from D. folliculorum by the characteristic features of the following structures: the flat gnathosoma, the humplike podosoma and the absence of transverse striation on its anterior dorsal surface, the supracoxal spines, the hypostome, the oral opening, the pedipalpal claws and the claws on legs, and the annuli of the terminal part of the opisthosoma. The morphology of the above structures observed are briefly compared with those of D. folliculorum.