374 



THE STUDY OF INSECTS. 



wings erect above the back when at rest. There are some 



moths that have 

 clubbed antennae,and 

 others that fly by day 

 but no moth presents 

 all three of the charac- 

 teristics given above. 

 It is more difficult 

 to distinguish the but- 

 terflies from the skip- 

 pers ; yet this can be 

 easily done. In but- 

 terflies the club of 

 the antenna is bluntly 

 rounded at the tip 

 instead of being fur- 

 nished with a re- 

 curved point as in 

 most skippers ; the 

 abdomen is very slen- 

 der ; and some of the 

 branches of radius of 

 the fore wings co- 

 alesce beyond the 

 There are butterflies in 



vn. 



VII 



FIG. 455. Wings of Basilarchia astyanax. 



apex of the discal cell (Fig. 455). 



which all of the branches of radius present arise from the 



discal cell ; but this is due to the fact that two of the 



branches coalesce to the edge of the wing, as is shown by 



the fact that in these butterflies radius has less than five 



branches. 



This superfamily includes four families, which can be 

 separated as follows : 



A. Cubitus of the fore wings apparently four-branched (Fig. 456). 



P- 375 PAPILIONIDJE. 



A A. Cubitus of the fore wings apparently three-branched (Fig. 455). 

 B. With six well-developed legs, although in some species the fore 



