Hagen.] 162 [December 27, 



W. H. Edw., K. A. Butt. Vol. i, Col. 8.— Canad. 



Entom. xiv, p. 56. — Trans. Ent. Soc. Philad., 



v, p. 14. 

 H. Edwards, Colias, p. 10, (Calif. Acad.). 

 Strecker, Amer. Macro-Lep., p. 81. 

 Mead, Wheeler's Rep., v, p. 749. 



I have before me some pairs determined by Mr. W. H. 

 Edwards ; they belong to a large lot collected by Mr. J. A. Allen, 

 1871, July 9 to 25 in the Colorado Mountains, some at Mont- 

 gomery above 11,000 feet, males and white females, no yellow 

 female among them ; a white female from Dakota, collected by 

 Dr. Mark. 



Mr. Strecker has first put C. Scudderi as a synonyme of C. 

 Pelidne. In comparing the figures and descriptions of Mr. Reakirt 

 and Mr. W. H. Edwards no difference whatsoever is shown to 

 exist. The figures of C. Scudderi look at first different in the 

 discal spots, which represent large black blots. Apparently the 

 silver in the red wing is changed to black, as is mostly the case 

 when the silver is not perfectly pure and comes in contact with 

 colors containing cinnabar. I wish to draw attention to this fact 

 as also in other figures ; for instance C. occidentalis and the four 

 species of Argynnis in the first part show the silver spots more or 

 less changed into black blots. 



The description of Mr. W. H. Edwards omits to state, that the 

 wings above are strongly powdered with black at the base of both 

 w T ings and along the inner margin of the secondaries, a character 

 well represented in the figure. For the female the description and 

 figure are equally insufficient ; no one will be able from them to 

 separate the yellow female of C. Scudderi and C. occidentalis. 



The range acknowledged for C. Scudderi by Mr. W. H. 

 Edwards is through the whole of Arctic America from Hudson's 

 Bay (Canad. Entom. xiv, p. 56) to Lake Labache, Br. Col. Mr. 

 W. H. Edwards says probably, Mr. H. Edwards undoubtedly, C. 

 Scudderi, and the latter statement is true, as I have three males 

 collected by the late Mr. Crotch in this locality. Mr. W. H. Ed- 

 wards had only three white females. The female from Dakota 

 proves that the species flies also in large tracts of land between 

 the far east and west. That it appears in the higher mountains 



