''H. suis'' is a large greyish brown louse, currently the largest louse found on the domestic species at 5mm. They have long mouthparts used for the sucking the blood of the host, in this case, the pig. All of its legs are of similar sizes. | ''H. suis'' is a large greyish brown louse, currently the largest louse found on the domestic species at 5mm. They have long mouthparts used for the sucking the blood of the host, in this case, the pig. All of its legs are of similar sizes. |