294 Catalogue of North American Sphinges. 



the abdomen. Expands about four inches. Larva, as represent- 

 ed by Abbot, (Ins. Geog. p. 63, pi. 32) dark brown, with a dou- 

 ble chain-like rust-red dorsal line, a paler lateral line, a series 

 of eight hook-shaped yellowish spots on each side enclosing the 

 spiracles, and a short curved horn on the tail. Eats the leaves of 

 the sweet potato ( Convolvulus batatas, ) and enters the earth to 

 undergo its transformation. Pupa with a long hooked tongue- 

 case spirally recurved at its extremity. Inhabits the Middle and 

 Southern States. 



I am indebted to Dr. J. E. Holbrook, of Charleston, S. C, for 

 a specimen, 



2. S. Carolina. L. 



Ash-gray ; fore-wings with blackish wavy lines ; hind-wings 

 whitish in the middle, with four black bands, the two central 

 ones narrow and jagged ; fringes spotted with white ; five orange- 

 colored spots encircled with black on each side of the abdomen ; 

 and the tongue excessively long. Expands about five inches. 

 Larva apple-green, transversely wrinkled, with seven oblique 

 white lines on each side, and a rust-colored caudal horn. Com- 

 monly known by the names of potato-worm and tobacco-worm, 

 from the plants on which it is found ; transforms deep in the 

 earth. Pupa with a long tongue-case, curved near the head, 

 straight and touching the breast only at the end, representing the 

 handle of a vase. 



3. S. Drupif&^aruTn. Smith- Abbot. 



Pale reddish-gray ; fore-wings with a dark brown band ex- 

 tending from the inner margin to the tip, and crossed by slender 

 black lines between the nervures ;* hind-wings with two trans- 

 verse blackish bands ; thorax dark chestnut, with the sides and 

 the head white ; abdomen dark brown above, with a slender 

 dorsal black line and about five whitish lateral spots margined 

 with black. Expands three and a half to four inches. Larva, 

 according to Abbot, (Ins. Geog. p. 71, pi. 36) apple-green, with 

 seven oblique lateral bands, which are violet above and white 

 below, a line on each side of the head and the caudal horn vio- 

 let. Feeds on the leaves of the Celtis and plum, and is trans- 

 formed in the earth. Pupa, like that of S. Ligustri, with a short 

 tongue-case detached from the breast. 



* The veins, or elevated and branching lines on the wings of insects, are called 

 nervures by Mr. Kirby. 



