Linognathus vituli Langsnudet kvæglus (Long-nosed cattle louse)
Order: Phthiraptera: Lice | Suborder: Anoplura: Sucking lice.
Specific morphology: Adult (length: 1.5-2.5 mm). Long-nosed louse with elongated head and body. Relatively slim abdominal segments without brown, chitinous plates around bilateral spiracles.		Adult and eggs attached to hair on the host.
Hosts: Cattle
General morphology of sucking lice: Wingless, dorso-ventrally flattened insects. Head: Relatively narrow, pointed front with thin sucking mouthparts, long lateral antennae. Thorax: Strong legs, large claws for grasping. Abdominal segments: Black when blood-filled, wider than thorax, lateral spiracles with brown plates.