Linognathus vituli

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Linognathus vituli (click on image to enlarge it)
Author(s): Basma Ouarti et al.
Source: Parasite (2020) 27, 28
Linognathus vituli (click on image to enlarge it)
Author(s): Kansas Department of Agriculture
Source: IPM Images

Linognathus vituli (Linnaeus, 1758) - (longnosed cattle louse)

This sucking louse is widely distributed on cattle, and is often the most common louse on that host. Mostly calves up to an age of 3 years are infested and on these, the lice are found predominantly on the head, neck, and shoulders. Infestations cause irritation on the hosts and result in frequent scratching, rubbing and licking of the affected body parts.

The adult lice are dark brown and have a size of around 2 mm, with an elongated head and body. They have no eyes or wings.

Vernacular names
• Deutsch: langköpfige Rinderlaus
• English: longnosed cattle louse
• Français: pou du boeuf