Linognathus spp

From Cow
Adult Linognathus spp louse

Linognathus spp (Long-nosed cattle louse) are a common parasitic louse of cattle worldwide.

These lice are found in distinct clusters on cattle, mainly on the head and face, extending to the dewlap in heavy infestations. Species which are pathogenic to cattle include:

  • Linognathus vituli[1]

They primarily cause skin irritation in cattle and are effectively treated with newer insecticides such as fipronil and ivermectin[2][3].


  1. Changbunjong T et al (2009) A survey of ectoparasitic arthropods on domestic animals in Tak Province, Thailand. Southeast Asian J Trop Med Public Health 40(3):435-442
  2. Okursoy S et al (2007) Treatment of Linognathus vituli and Bovicola bovis infestations of calves with cypermethrin. Turkiye Parazitol Derg 31(3):212-214
  3. White WH et al (2007) Therapeutic and persistent efficacy of spinosad applied as a pour-on or a topical spray against natural infestations of chewing and sucking lice on cattle. Vet Parasitol 143(3-4):329-336