EASTERN UNITED STATES. 



rangeinent of the forms as found in Mr. Edwards's new 

 catalogue is given, with the locality of each, after which 

 those occurring in the Eastern United States will be 

 considered. 



PIERIS NAPI, Esper. 



Arctic form, BRYONI^, Ochs. Alaska. 

 Yar. HULDA, Edw. Kodiak, Alaska, 



1. Winter form, YEXOSA, Scud. California to British 



Columbia. 

 Aberr. FLAVA, Edw. California. 



2. Winter form, OLERACEA-HIEMALIS, Harr. 

 Yar. BOREALIS, Grote. Labrador, Anticosti. 

 Yar. FRIGIDA, Scud. Boreal America. 



Aberr. YIRGINIENSIS, Edw. New York, Ontario. 



3. 1. Summer form, ACADICA, Edw. Newfound- 



land. 



2. Summer form, a. PALLIDA, Scud. California to 



British Columbia. 

 6. CASTORIA, Reak. California to British 



Columbia. 

 Aberr. FLAVA, Edw. California. 



3. Summer form, OLERACEA-^STIVA, Harr. 



New England to Michigan ; Ontario, Quebec. 



Aberr. YIRGINIEXSIS, Edw. Expanse of wings 1.7 

 inches. Upper side white, less pure than the form 

 Oleracea, and much obscured by gray-brown scales, 

 which are scattered over the whole surface, but are dense 

 on apex, costa, and basal half of fore wings, and at base 

 and along the subcostal and median venules of hind 

 wings ; a gray patch on costa of hind wings. 



