146 LEPIDOPTERA OF NORTH AMERICA. 



Deilephila. Tongue as long, or nearly as long, as body ; abdomen atten- 

 uated at tip. 



Jt Abdomen tufted at the tip. 

 Sesia. Wings hyaline in the middle. 

 Macroglossa. Wings opaque ; tongue as long as the body. 



II*. Terminal margin wavy between nervules. 

 Anceryx. Tongue as long as the body; head broad and conical, eyes 



large ; wings narrow. 



M. Antaeus. Tongue nearly twice as long as the body. 

 S. Juglandis 9 Tongue nearly obsolete. 



III.* Terminal margin nearly straight or slightly sinuate. 

 Anceryx Caicus. Body rather long and slender, wings narrow, 

 f Antennae with a long hook tapering to the end, ciliferous in ^ , simple in . 

 it Abdomen thick and large ; wings deeply concave on inner border. 



Tongue two-thirds as long as the body. 

 Pachylia. Interior angle of hind wings, covered with white scales ; head 



broad, eyes large. 

 Tongue as long as the body. 

 Philampelus. 



ff Antennae somewhat fusiform, rather short, hook minute. 



t Abdomen oblanceolate, body long and slender. 

 Tongue as long as the body. 



Anterior wings narrow, tip very acute, often somewhat hooked. 

 Chaerocampa. Head large, conical ; eyes moderate ; abdomen with a slen- 

 der pencil of hairs. 

 IV.* Terminal margin excavated by the tip, convex from the middle. 



t Abdomen without apical tuft. 



Ambulyx. Wings narrow and very long ; head prominent, conical, ob- 

 tuse ; tongue long. 



Tongue not quite as long as the body, or as long. 

 Pergesa. Antennae filiform, longer than thorax; body oblanceolate; wings 



slightly denticulated. 

 Chaerocampa (in part). 



Tongue nearly obsolete. 

 S. Juglandis . Antennae subpectinated. 



Tongue about one-half as long as the body. 



Darapsa. Head subtufted, front nearly vertical, eyes small ; antennas 

 with a long hook. 



JJ Abdomen with apical tuft. 

 Fore wings with silvery streaks. 



Calliomma, Group II. Head prominent, conical ; antennae minutely ser- 

 rate setose. 



B. ANTERIOR WINGS NOT ENTIRE. 



I.* Terminal margin angulated, denticulated, excised or indented. 



10 Fore wings with angular indentations above interior angle. 



t Abdomen with apical tuft. 



