PLATE XLIV
THE FIGURE-OF-EIGHT (1)
You have only to look at this moth to see why its name was given to it, for on each of its front wings it has two large white spots with two small dark spots inside them, one above the other; so that they look very much like the figure 8. But the inner 8 is always a much neater one than the outer, which has a kind of blurred appearance, just as if a drop of water had fallen upon it and made the colours run.
This moth is quite a common one in most parts of the country, and appears on the wing in September. It only flies by night, so that one does not often see it; but it will sometimes fly into a well-lighted room on a dark, warm evening if the window is left open. You can find the caterpillar, however, without any difficulty at all. All that you have to do is to hunt for it on hawthorn or blackthorn bushes during May or the early part of June, and there you are almost sure to see it—a smoky green creature thinly covered with black hairs, and with a yellow stripe running down its back, and another along each side of its body. A little later on it spins a neat little cocoon, made partly of silk and partly of bits of bark and leaf, which it fastens underneath a twig of its food-plant. And in this it changes into a chrysalis.
1. Figure of Eight2. Peach Blossom
3. Grey Dagger
PLATE XLIV
THE PEACH BLOSSOM (2)
This is really a lovely moth, for on each of its olive-brown front wings it has five large spots, which are coloured exactly like the petals of a peach. But if it is put away in a collection these spots very soon fade, unless the insect is kept in the dark, and after a few months they become almost white.