DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Coloured scanning electron micrograph (SEM) of Louse egg case attached to a strand of hair (Linognathus vituli). Long-nosed cattle louse (Linognathus vituli) and egg cases with emerging larvae. Also called the blue cattle louse, it is a common external parasite (sucking louse) of cattle that can cause serious damage if it occurs in high frequency. Cattle will lick, scratch and rub affected areas excessively. Anaemia can occur with increasing chances of other infectious diseases. Eggs are laid in egg cases that are attached to the body hair. Magnification: x41 when shortest axis printed at 25 millimetres.
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