cles are replaced by club-like projections of a third of an inch in length, and of a bright coral red colour. The last segment is furnished with but five tubercles, the central one of which is of the same clavate form as those on the anterior segment, but is of a fine yellow colour. As before stated, they feed on the leaves of the sassafras, spice-wood, and swamp button-wood, and are to be found during most of the autumn months.
"The silk spun by this species is as fine, and is produced in as great abundance, as that furnished by the Bombyx mori (or the silk-worm usually reared for manufacturing purposes, and which was originally a native of Asia), but is of a darker colour, and will, it is feared, always present difficulties in reeling, from the manner in which part of it is attached to the branch."
SATURNIA ISIS, Westwood.
PLATE XIII.
On first drawing and describing this fine species, we thought that it was quite new, never having seen another specimen except one in the possession of Samuel Stevens, Esq., from which our drawing was made. But we have since learned that a figure
