440 



The Moths and Butterflies 



cs-f- 



FIG. 638'. FIG. 637. 



FIG. 634. Venation of a Hesperid, Epargyreus tityrus. (After Comstock; enlarged.) 

 FIG. 635. Venation of a Papilionid, Papilio polyxenes. (After Comstock.) 

 FIG. 636. Venation of a Nymphalid, Basilarchia astyanax. (After Comstock; enlarged.) 

 FIG. 637. Venation of a Lycaenid, Chrysophanus thoe. (After Comstock; enlarged.) 

 FIG. 638. Venation of a Pierid, Pontia protodice. (After Comstock; enlarged.) 

 For all: cs, costal vein; sc, subcostal vein ; r, radial vein; m, medial vein; c, cubital 

 vein; a, anal veins. 



