326 



THE STUDY OF INSECTS. 



outer margin. 



The hind wings are white, but finely dusted 

 with gray scales. With this species vein V 2 is present in 

 both fore and hind wings. 



The Banded Footman, Cisthcne unifascia (Cis-the'ne 

 u-ni-fas'ci-a). This little beauty (Fig. 398) occurs in the 

 Atlantic States from New York to Texas. The 

 fore wings are lead-colored, and crossed by a 

 yellow band, which extends also along the inner 



FIG. 398. Cisthene J 



unifascia. margin to the base of the wings. The hind 

 wings are pink except the apex, which is lead-colored. 

 There is much variation in the width of the yellow band. 



Family ZYG.EXID^E (Zy-gaen'i-dae). 



The Zygcznids (Zy-gcz' nids\ 



These moths are most easily distinguished from the allied 

 families that are rep- 

 resented in this coun- in, 

 try by the structure 

 of the hind wings. 

 Here we find the 

 tendency of veins II 

 and III to coalesce 

 carried to the great- 



est extreme, aiey 

 being joined clear 

 to the margin of the 



wing (Fig. 399) ; oc- <2 / 



casionally forms are 

 found in which the 

 tips of these two 

 veins are separate for 

 a short distance near 



the apex of the Wing; F'O- 399 Wings of Ctenucha virginica. 



and usually they are separated for a short distance near the 

 base of the wing, as shown in the figure. In some of the more 



VIIj 



