While looking over some insects in Hamilton a few days since collected by Miss Mills, daughter of Wm. H. Mills, EsQ., I was delighted at finding a specimen of Libythea bachmani, Kirtland, which is probably a variety of L. motya, Boisd. It was almost entire, though somewhat beaten. The young lady had taken it on the beach at Hamilton early in August. She found it settled on the sand, and it seemed at first partially torpid, but when captured used its wings freely in trying to escape. It is a very peculiar insect, with very long palpi. The following is a description of it.