BUTTERFLIES OF THE VICINITY OF NEW YORK CITY 
Sometimes rather common in this neighborhood. The species 
may be recognized easily by the four eye-like spots on the upper 
side of the wings. The caterpillar feeds on Gerardia, plantain and 
snap-dragon. It is double-brooded. Found throughout the United 
States and southward. 
39- Blue Viceroy (Limenitis astyanax). 
This butterfly frequents orchards and feeds on fallen fruit. It is 
black with a bluish lustre, and the hind wings are clouded with bluish 
shades. It is double-brooded, the first brood appearing in May and 
June and the second in July and August. The caterpillar feeds on 
apple, thorn, gooseberry, cherry, plum, huckleberry etc. 
