BUTTERFLIES OF THE VICINITY OF NEW YORK CITY 
butterfly is readily known by its sulphur-yellow wings with black 
borders. A pale form of the female occurs in which the wings 
are whitish or yellowish-white; sometimes a male form occurs which 
is thickly covered with black scales, so as to obscure the yellow 
ground "color. The caterpillar lives on clover and allied plants. 
12. Orange Sulphur Butterfly (Colias eurytheme). 
Very rare in this vicinity, but common in the Southern and 
Western States. It differs from Colias philodice in having the wings 
orange instead of yellow. The caterpillar lives on clover. 
13. Orange-Tip (Euchloé genutia). 
This pretty species is local, and appears to be restricted to certain 
localities. It is on the wing early in May, and flies until about the 
middle of that month. The butterfly is white with the tips of the 
fore wings orange in the male; the under side of the hind wings 
is marbled with green. The caterpillar is dark yellowish-green, 
glossy, with a yellow stripe along the back and a broader white one 
oneach side. It feeds on rock cress (Arabis). 
14. Orange Butterfly (Eurema nictppt). 
About 1880 this beautiful species appeared in considerable num- 
bers in Central Park, New York City, and other places around New 
York, but since then only a few specimens have been taken. The 
butterfly is found from the Atlantic to the Pacific, and in most of 
the States south of Lat. 40° in Mexico and in Central America. In 
the South it is very abundunt. The caterpillar lives on senna (Cassia). 
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