300 Catalogue of North American Sphinges. 



a slender line on the head and thorax, the shoulder-covers, and a 

 transverse patch on the top of the first abdominal segment, dark 

 olive. Expands from four to four inches and three quarters. 

 Larva, when young, pea-green, with a slender recurved caudal 

 horn, and of the same color or of a clear light brown and without 

 a tail afterwards, with six oblique broad oval cream-colored spots 

 on each side of the body ; feeds on the leaves of indigenous and 

 exotic grape-vines, and on those of Ampelopsis hederacea, and 

 enters the earth to transform. 



3. P. Achemon. Drury. = Crantor ? F. 



Red-ash colored ; fore- wings with a few short transverse brown 

 lines, and shaded with brown from the middle to the hind mar- 

 gin, with a square spot near the middle of the inner margin, an- 

 other near the tip, and a triangular spot near the hind angle, of a 

 deep brown color ; hind-wings pink, with a deeper red spot near 

 the inner margin, a dusky hind border, and a transverse row of 

 small black spots ; palpi and a large triangular spot on each shoul- 

 der-cover deep brown. Expands from three to four inches. Larva 

 pea-green with a slender recurved tail when young, of the same 

 color or light brown and without a tail subsequently, with six 

 oblique oblong oval scalloped cream-colored spots on each side. 

 It eats the leaves of grape-vines and of the common creeper or 

 Ampelopsis. 



This and the preceding species, in the larva state, are very in- 

 jurious to our cultivated grape-vines. 



Genus V. Chcerocampa. Duponchel. 



Metopsilus. Duncan. Deilephila. (section.) Boisduval. 

 This genus was established, in 1835, by M. Duponchel,* to 

 receive certain European Sphinges the larvas of which have the 

 head and fore-part of the body retractile, the head being very 

 small, and the first three segments abruptly diminishing in size 

 from the fourth, which gives to the fore-part of the body a re- 

 semblance to the head and snout of a hog. Hence the French 

 name of these larvse, cochonties, and the generical name proposed 

 by Duponchel, which is derived from x^'^qo;, a hog, and ndum], a 

 caterpillar. This peculiarity in the form of the larvse seems to 

 have suggested to Linneeus the names that he has given to two 



* Godart and Duponchel. Lepidopteres de France. Supplement. Tome II, p. 

 159. (1835.) 



