44° 
The Moths and Butterflies 
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. 
