This is my first post for Macro Monday which will probably become a weekly feature. After two years of Monochrome Monday posts I thought it was time for a change.
This is also my contribution to the Friendly Friday Challenge: Unusual.
This is a rare colour variation of the Grey Dagger Moth caterpillar photographed in Hatherton, Cheshire, England in the early 1990s.
The very pale bluish stripe down the centre of the back of the caterpillar is normally a bright yellow. When I found and photographed this specimen I had to do some research. I could find no reference to this colour variation in any of my books so I went to see an entomologist friend to see what we could find in his reference books. In the end we found a reference to the colour variation in a 19th century reference book.