“And, mamma, see! It has beautiful little dark-blue eyes.”

“Yes, it has, but I did not notice them before.”

“Well, what kind of a butterfly is it?”

“It is not a butterfly at all.”

“Not a butterfly?” said Letty, surprised.

“No; it is a moth. Have you noticed its antennae—the horns on the front of its head?”

“They look like feathers,” said Letty; “no, like ferns.”

“So they do,” said her mother. “Well, that is how we know it is not a butterfly, for they have thread-like antennae, with a little knob on the end. Moths fly by night and that is probably why this one stays so still now.”

“I wish I knew its name,” said Letty.

“If you will take my card and run over to the public library and ask the librarian to give you a book that tells about moths and butterflies, we will find out.”