﻿NORTH AMERICAN SPHINGID^E. 127 



188. Arctonotus. — Tongue obsolete or very short; body very pilose; abdomen hardly longer than thorax. 

 142. Deilephila. — Tongue as long, or nearly as long, as body; abdomen attenuated at tip. 



JJ Abdomen tufted at the tip. 

 128. Sesia. — Wings hyaline in the middle. 

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



II.* Terminal margin wavey between nervules. 

 174. 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 ?. — Tongue nearly obsolete. 



III.* Terminal margin nearly straight or slightly sinuate. 

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



| Antennae with a long hook tapering to the end, ciliferous in % , simple in 9 . 

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

 Tongue two-thirds as long as the body. 

 157. Pachylia. — Interior angle of hind wings, covered with white scales; head broad, eyes large. 



Tongue as long as the body. 

 153. Philampelus. 



■j"j" Antennas somewhat fusiform, rather short, hook minute. 

 J Abdomen oblanceolate, body long and slender. 

 Tongue as long as the body. 



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

 149. Chaerocampa. — Head large, conical; eyes moderate; abdomen with a slender pencil of hairs. 

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

 | Abdomen without apical tuft. 

 152. Ambulyx. — Wings narrow and very long; head prominent conical, obtuse ; tongue long. 

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



145. Pergesa. — Antennae filiform, longer than thorax; body oblanceolate; wings slightly denticulated^ 

 149. Chserocanrpa (in part.") 



Tongue nearly obsolete. 



S. Juglandis % . — Antennas subpectinated. 



Tongue about one-half as long as the body. 



146. Darapsa. — Head subtufted, front nearly vertical, eyes small; antennas with a long hook. 



JJ Abdomen with apical tuft. 

 Fore wings with silvery streaks. 

 141. Calliomma, Group II. — Head prominent, conical ; antennae minutely serrate setose. 



B. Anterior "Wings not entire. 

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

 1° Fore wings with angular indentations above interior angle. 

 J Abdomen with apical tuft. 

 132. Proserpinus. — Antennae clavate with minute hook ; tongue as long as body ; eyes minute. 



\\ Abdomen without apical tuffc. 

 134. Unzela. — Antennae rather slender ; tongue moderately long. 



2° Fore wings circularly excavated near the tip and interior angle, middle rounded. 

 136. Thyreus, G-roup II. — Head small, eyes very small; tongue equal to 3d abdominal ring. 

 3° Fore wings truncated at the tips. 



