From Gerald Legg
As a keen microscopist I was delighted to see Arthur E. Smith’s micrographs featured in your magazine (4 October, p 24).
However, I have to point out that the “sheep tick” is in fact a type of louse-fly, the sheep ked Melophagus ovinus.
Having curated old microscope slides I quite often found slides incorrectly labelled, the slides often being created by a microscope-slide preparator rather than an entomologist or arachnologist.
Hurstpierpoint, Sussex, UK
