the present state of our knowledge to lay down characters which shall exclusively distinguish the species belonging to each. Thus, although Mr. Curtis asserts, under Callimorpha, that a long spiral proboscis and simple antennæ, in both sexes, distinguish the Lithosiidæ from the Arctiidæ, we find the present insect possesses the long spiral tongue of the former, and the male the pectinated antennæ of the latter family.
The whole colour of this moth is black, with numerous white spots, there being twenty of the latter on each of the fore wings, and eighteen on each of the hind wings, the latter being placed in three irregular rows. The sides of the head are white; there are four minute white dots on the collar, succeeded by a row of eight on the front of the thorax; there are also two on the scutellum, and the apex of each of the lappets is white; there are also two on the postscutellum, and four on each of the abdominal segments.
The specimen here figured is from St. Domingo, and is contained in the collection of the Reverend F. W. Hope.
The expansion of the wings is two inches and a half.
