Hagen.") 166 [December 27 



Harfordii and C. Barbara, which two species were shortly before 

 by him and Mr. W. H. Edwards declared to be male and female 

 of one and the same species. All his specimens are from Califor- 

 nia. None of his nor mine were taken in copulation. Besides 

 those before mentioned, Mr. H. Edwards recognized a female from 

 Squaw Creek, W. T., in the middle of the Deserts, July 16, as 

 also the typical C. Barbara. 



These specimens indeed make a different impression from the 

 numerous C. Edwardsii by the more or less rounded external 

 margin of the primaries, and the very faint discal spot. The 

 females of the same size, 51 millim. exp., are yellow, half of them 

 with a very incomplete black border of the primaries, sending out 

 prolongations along the veins, and two showing an indication of 

 an inner band. The cut of the primaries of the type and of most 

 of the specimens from Colville Valley is peculiar; the external 

 margin more convex, the hind angle less obtuse, in one only a 

 little more than 90°. Only one has the wings of the common 

 shape. 



A detailed comparison with Mr. H. Edward's descriptions 

 shows that all males have no indication of a row of submarginal 

 dots below. No other difference is shown. 



A very close examination of the specimens shows that they can 

 not be separated from C. Edwardsii except as a somewhat extrav- 

 agant variety connected to the type by intermediate forms. The 

 type male of C. interior from Lake Superior in the Bost. Soc. Nat. 

 I list, represents the type of C. Harfordii. The facies of the speci- 

 mens reminds one by the cut of the wings of C. Philodice. 



Colias Laurentina. 



Eurymus Philodice var. Laurentina Scudd. Proc. Bost. Soc. Nat. 

 Hist., Vol xvin, p. 181. 

 H. Edwards, Colias p. 7. (Calif. Acacl.) — Brookl. 

 Bull., March 1879. 



Of this very interesting form 39 specimens were collected at 

 Cape Breton, N. S., in July by Mr. R. Thaxter. Two pairs of 

 the types are before me. The specimens of 44 millim. exp. have 

 entirely the appearance of a dwarfed edition of C. Harfordii. The 

 marginal black band of the primaries of the female is larger than 



