ZOOLOGY. 211 



Incumbent on the back, narrower than the body, slight- 

 ly crossing. 



ORDER III, 



LIPEDOPTERA. 



This order contains the most splendid of the Insect tribesj 

 it is divided into three generas ; they all possess four farina- 

 ceous wings, covered with very fine scales, laid one over 

 another ; tongue spiral. The changes that this order undergo, 

 we have particularly noticed in our introduction to the 

 class* 



1. Papilio. Butterfly. Antennce thickening towards the 



extremity ; fig. 27, plate 3, generally terminating in a 

 knob, or club-shaped tip : zcings when at rest, usually 

 elevated, and meeting at the edges ; all this geneia fly 

 during the day. 



2. Sphinx. Haavk-Moth. Antennce thickest in the middle, 



fig. 28, plate 3, and pointed at the extremity ; wings 

 deflected : most of this class fly either in the morning or 



3. Phalence. Moth. Antennce setaceous, plate 3, 

 fig. 29, in some hairy, fig. 30, or pectinated, fig. 31, 

 gradually lessening from the base to the tip ; wings 

 mostly deflexed when at rest ; flight nocturnal, 

 p 2 



