PAPILXO. 



GENERIC CHARACTER. 



Antennae terminating in a conic-ovate or elon- 

 gate-ovate, somewhat arquated club ; palpi pressed 

 closely to the front, hardly reaching the clypeus, 

 the terminal joint obsolete or very minute ; feet 

 all formed for walking, armed with simple claws 

 at tip ; superior wings somewhat falcate ; inferior 

 wings often tailed at tip, and on the inner mar- 

 gin excised or folded to admit of the free motion 

 of the abdomen. 



OBSERVATIONS. 



The Caterpillars in this genus are destitute of 

 a hairy or spiny armature ; but, when disturbed, 

 they suddenly project from the anterior and su- 

 perior part of the neck a soft bifid appendage, 

 which diffuses a strong odour. This singular 

 organ, although somewhat formidable in appear- 

 ance, is yet perfectly harmless ; it may, however, 

 serve the purpose of repelling the enemies of the 



PLATE I. R 



