''L. vituli'' is a elongated dark blue louse around 2mm in length. The forelegs are smaller than both the midlegs and the hindlegs.
−
−
The eggs are dark, and often cannot be seen on the host by the naked eye alone.
−
−
===Life Cycle===
−
The female lays eggs on the host, and these hatch generally within 2 weeks into nymphs. Like many other cattle louse, the nymph is similar in appearance to the adult, just slightly smaller. The nymph then undergoes three further transformations before becoming a mature adult.
−
−
The adults are capable of living for around one month, and the lifecycle of ''L. vituli'' is between two and three weeks.