_Upper Side._ Antennæ white within, brown without. Head, thorax, and abdomen rusty grey brown; the latter having on the sides of each ring a narrow white streak, and two small white spots on the upper part. Anterior wings rusty grey brown; having several dappled white marks dispersed on different parts, particularly at the shoulders and external edges; a narrow black line rises near the lower corners, running from thence to the anterior edges, and ending near the tips; cilia brown, spotted with white. Posterior wings black; cilia white, having some whitish marks thereon, particularly near the abdominal corners. _Under Side._ Breast and abdomen white. Legs brown. Wings brown; having two faint indented lines crossing them, near the tips and lower corners. Posterior wings brown, with some faint undulated dark lines crossing them from the anterior edges to the abdominal corners. The caterpillar of this insect, observed by Abbot, feeds upon the evergreen winter-berry, or gall-berry (Prinos glaber, Linn.), whence Sir J. E. Smith altered the name of the species from Hylæus to Prini. It is of a pale green colour, with six lateral oblique pink lines, the last of which extends to the base of the nearly straight tail, which is of the same colour; the chrysalis is chesnut, without any porrected tongue-case. One of these caterpillars, observed by Abbot, went into the ground on the 17th of May, and appeared as a moth on the 19th of June; whilst another buried itself on the 25th of August, and remained in the earth until the 26th of April. The caterpillar is subject to the attacks of a small Ichneumon, the larvæ of which, when full grown, eat their way out of its body and spin themselves up on the outside. The moth is occasionally seen sucking the blossoms of gourds in the twilight, but is not common. {50}PLATE XXVII. [Illustration] DEILEPHILA NESSUS. Plate XXVII. fig. 1. ORDER: Lepidoptera. SECTION: Crepuscularia. FAMILY: Sphingidæ, _Leach_. GENUS. DEILEPHILA, _Ochs._ Spectrum P. _Scop._ Sphinx P. _Linn._ DEILEPHILA NESSUS. Alis anticis cinerascentibus apice externo albido, posticis nigris fasciâ fulvâ, abdominis lateribus fulvis. (Expans. Alar. fere 5 unc.) SYN. Sphinx Nessus, _Drury, App. vol._ 2. _Cramer Ins. tab._ 226. _fig._ D. Sphinx equestris, _Fabr. Ent. Syst._ III. 1. 365. _No._ 29. HABITAT: Madras.