326 



THE STUDY OF INSECTS, 



outer margin. The hind wings are white, but finely dusted 



with gray scales. With this c^pecies vein V^ is present in 



both fore and hind wings. 



The Banded Footman, Cisthene 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 

 Cisthene Y^^^^ band, which extends also along the inner 

 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. 



Fig. 398 



tcni/ascia. 



Family Zyg^NID^ (Zy-gaen'i-dae). 



The Zygcenids {Zy-gce' nids). 



These moths are most easily distinguished from the allied 

 families that are rep- 

 resented in this coun- 

 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, <:iiey 

 being joined clear 

 to the margin of the 

 wing (Fig. 399) ; oc- 

 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^g. 399 — wings of Ctenucka virglmca. 



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 



II + III. 



