64 



would presuppose tlie absence of these characters unless specially men- 

 tioned. 



Packard's Labrador ? on the other hand bears out excellently 

 the characters given by Scudder ; the underside is worn but is, as 

 stated, dirty white with a yellowish tinge; we imagine fresher speci- 

 mens will show a coloration much as in typical olcracca. The bases of 

 the wings above are heavily black-shaded, the veins are also partially 

 outlined in black at outer margin and there is considerable smoky 

 suffusion on the wing causing that "green appearance" mentioned 

 by Scudder and suggesting a bryoniac form without the two black 

 subterminal round spots. Scudder lays a good deal of stress in his 

 description on wing-shape of secondaries as compared with olcracea 

 and the fact that the black costal edge of primaries extends in frigida 

 further around the outer margin but we must confess these are points 

 of which we can make nothing from a specific standpoint. 



In the light of the above remarks we believe we are justified in 

 accepting the single 9 labelled "Labrador, Packard" as a type (or 

 at least as typical) of frigida Scud., the other three original specimens 

 having apparently vanished from Scudder's ken before 1881 and been 

 replaced by the 2 S's mentioned by him to Mr. W. H. Edwards on 

 this date (Pap. L P- 93) which seemingly also served for the errone- 

 ous description of frigida given in the Butt. New Eng. Vol. H, p. 1193. 



The acceptance of this type of frigida will somewhat alter the con- 

 ception of the race and make it much closer to olcracea Harr. and 

 pscudonapi B. & McD. with possibly borealis Grt. as a synonym. We 

 must await material from Labrador before definitely placing it but 

 would note that Verity's figure (Rhop. Pal. PI. XXXH, Fig. 8) prob- 

 ably approaches the true frigida very closely, although the secondaries 

 in this figure appear rather too yellow ; in the light of this figure we 

 believe his remarks on p. 333 to be entirely correct. 



PlERIS NAPI MARGINALIS Scud. 



The original description of this race calls for a S type from the 

 Gulf of Georgia and a 2 specimen from Crescent City, Calif., stat- 

 ing that "males and females are alike in their markings." These speci- 

 mens, collected by Prof. Agassiz, are in the Cambridge Museum; the 

 so-called 9 from Crescent City proves to be a $ which accounts 

 for the extraordinary statement as to the similarity of the sexes; the 

 ($ is simply labelled "Washington Terr., Agassiz" and was presum- 



