LEPIDOPTERA 



NORTH AMERICA 



Sec. I. RHOPALOCERA. 



AnienncE filiform, terminating in a knob or club. Wings, 

 at least the primaries, elevated in repose ; no bristle or 

 frenulum at the anterior edge of the secondaries. No siem- 

 mata or simple eyes on the vertex. Flight diurnal. . 



Fam. I. fapilionidae. 



Larva elongated, with two retractile tentacles on the first 

 ring. Perfect insect with the abdominal edge of the second- 

 aries concave. Discoidal cellule closed. Hooks of the tarsi 

 simple. Six feet adapted to walking in both sexes. 



PAPILIO Linn. 



Head large ; eyes prominent ; palpi very short, joints scarcely 

 distinct; antennas elongate, club pyriform ; body, more or less 

 hairy, free from the wings; wings robust, borders more or less 

 (lentated, often terminated by a tail ; central cell closed ; nerves^ 

 prominent. 



Larva smooth, or bearing fleshy tubercles ; provided with two 

 retractile tentacles protruding from the first segment ; emitting a 

 strong odor when alarmed. 



Chrysalis without metallic spots, moderately angular, occasion- 

 ally a horn on the back ; head square, bifid, or truncate ; fastened 

 l»y the tail and suspended by a thread across the back. 

 1 



