BUTTERFLIES OF THE VICINITY OF NEW YORK CITY 



the middle of May, the second late in June until early in July, and the 

 third from late in July until early in September. The spring brood 

 has the under surface of the hind wings and tips of the fore wings 

 heavily washed with yellow, while the summer broods are entirely 

 pure white. The caterpillar is pale green f covered with fine, short, 

 white hairs, and has a dark green line along the back. It feeds on 

 various kinds of cruciferous plants such as cabbage, turnip, radish, 

 mustard and horseradish. 



8. Imported Cabbage Butterfly (Pieris rapes). 



This species is an importation from Europe, and is exceedingly 

 common from May until November. It may be seen everywhere, in 

 gardens, pastures and other places, but especially in cabbage fields. 

 It was first noticed on this continent in Quebec, Canada, about i860, 

 whence it gradually extended its range. In 1868 it was independently 

 introduced at New York. Since then the butterflies have spread 

 from Canada to Florida and westward to the Pacific coast. The 

 caterpillar lives on all kinds of cruciferous plants, such as cabbage, 

 to which it is particularly injurious, cauliflower, turnip and radish. 





9 Southern Cabbage Butterfly (Pieris protodice). 



This butterfly is white with black dashes and spots. There 

 are two broods each year, the first coming out in May and June and 

 the second from about July to October. The caterpillar lives on 



10 



