SYNOPSIS OF THE GENERA. XXI II 



Antennae slender, minutely serrate-setose; 



Abdomen more or less tufted ; 



Tongue moderate. Oenosandra. 



Tongue rather short. Perigonia. 



Tongue one-half as long as body. Macro glossa. 



Antennae subclavate or fusiform ; 



Abdomen not tufted at the tip. j Arctonotas. 



( Deilephila. 



Abdomen tufted at the tip. 



( Macroglossa. 



B. Terminal margin wavy. Anceryx.* 



C. Terminal margin nearly straight or slightly sinuate ;f 



Antennas with a long hook ; 



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



Tongue as long as the body. 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 ; 



f Ambulyx. 

 Tongue not quite as long as body or as long. ~{ Pergesa. 



< Chaerocampa part. 

 Tongue nearly obsolete. S. Juglandis $ . 



Tongue about half as long as the body. Darapsa. 



Abdomen with apical tuft ; 

 Fore wings with silvery streaks. . Calliomma. 



FORE WINGS NOT ENTIRE. 



Fore wings indented above interior angle ; 



Abdomen with apical tuft. Proserpinus. 



Abdomen without apical tuft. Unzela. 



Fore wings excavated near tip and anterior angle. Thyreus pars. 

 Fore wings truncate at the tips ; 



Angulated and denticulated. 

 Tongue nearly as long as the body. Thyreus para. 



Angulated in the middle. 



Abdomen with apical tuft. { En y- 



' Perigonia. 



Abdomen without tuft or scarcely tufted ; 



Tongue about as long as palpi. Smerinthus pars. 



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



Not angulated in the middle. Perigonia pars. 



* M. anticus and the 9 f & Juglandis. f A. caicus. 



