X is for Xanthous and also for Xanthotype Moth
Xanthous is a Greek adjective used to describe a yellow colour. I read in a couple of places that xanthous colour was that of the yellow of an egg yolk. Seen below the yellow yoke of a freshly boiled egg cut in half for my morning's breakfast.
Several years ago I found a pretty yellow moth in our yard. I found its id and discovered that this moth actually was known by two names. And most important for today's post I found that it was caled a Xanthotype Moth... go figure. I guess its yellow colour had an influence on its naming It is also known as a Geometer Moth.