Haemodipsus brachylagi n. sp. (Phthiraptera: Anoplura: Polyplacidae), a new sucking louse from the pygmy rabbit in Nevada.

The male and female of Haemodipsis brachylagi n. sp. (Phthiraptera: Anoplura) are described from specimens collected from a pygmy rabbit, Brachylagus idahoensis (Merriam) (Lagomorpha: Leporidae), from Nevada. Morphological features that differentiate the new species from other known species of Haemodipsus are elucidated, and an identification key to both sexes of the 3 species now known from this genus in North America is included. Geographical distributions of the other 4 species of Haemodipsus known from other parts of the world are highlighted.