In granaries the tyroglyphida and cheyletida Catching acarid mites, which Consisted the main group of stored product mites make up about 70% of the total.

• 粮食仓库里的粉螨；以及以粉螨为食的肉食螨；两者构成了储粮螨类的主体；约占整个储粮螨类的70%25.