Just six months since I obtained a caterpillar form of this fine moth (Cossus liquiperda). It was of great size, being 4 inches in length, and as large round as the small finger of a moderate-sized hand. Not knowing what else to do with it, I placed it in a flower-pot, and stood it upon a piece of glass in my greenhouse. Some leaves were put in with it, but these it would not eat; and from that time to the present it has still remained alive without a particle of food, thus displaying a most remarkable tenacity of existence. This species is well known for its destructive raids on timber. A. D.