SYNOPSIS OF THE GENERA. 



Anteniiffi slender, minutely serrate-setose; 



Abdomen more or less tufted ; 



Tongue moderate. 



Tongue rather short. 



Tongue one-half as long as body. 



Antennae subclavate or fusiform ; 



Abdomen not tnfted at the tip. 

 Abdomen tufted at the tip. 



Oenosandra. 



Perigonia. 



Macroglossa. 



( Arctonotus. 



( Deilephila. 

 ( Sesia. 



( Macroglossa. 

 Anceryx.* 



B. Terminal margin wavy. 



C. Terminal margin nearly straight or slightly sinuate ;t 



Antennae with a long hook ; 



Tongue two-thirds as long as the body. Pachylia. 



Tongue as long as the bod}'-. Philampelus. 



Antennae somewhat fusiform, rather short ; 



Tongue as long as the body. Chaerocampa. 



D. Terminal margin excavated by the tip, convex from the middle ; 



Abdomen without apical tuft ; 



{Ambulyx. 

 Pergesa. 

 Chaerocampa pars. 



Tongue not quite as long as body or as long. 



Tongue nearly obsolete. S. .Juglandis % . 

 Tongue about half as long as the body. 

 Abdomen with apical tuft ; 

 Fore wings with silvery streaks. 



Darapsa. 



Calliomma. 



Fore wings not entire. 



Fore wings indented above interior angle ; 



Abdomen with apical tuft. 



Abdomen without apical tuft. 



Fore wings excavated near tip and anterior angle. 



Fore wings truncate at the tips ; 



Angulated and denticulated. 

 Tongue nearly as long as the body. 



Angulated in the middle. 



Abdomen with apical tuft. 



Abdomen without tuft or scarcely tufted ; 

 Tongue about as long as palpi. 

 Tongue two-thirds as long as the body. 

 Not angulated in the middle. 



Proserpinus. 



Unzela. 



Thyreus pars. 



Thyreus pars. 



f Enyo. 



' Perigonia. 



Smerinthus pars. 



Deidamia. 



Perigonia purs. 



* M. anticus and the 9 of S. juglandis. 



f A. caicus. 



