45 



1st and 5th, and from the 13th to the 16th, inclusive; they were 

 obtained on the upper Yukon River, all the way from Nulato, where 

 they are rare, to Fort Yukon, where they are common, except in the 

 Ramparts. One specimen was taken at Nulato May 12th. 



Papilio Aliaska nov. sp. 



This species is of the same size and facies as P. ZoUcaon Boisd., 

 but differs from it in the following points: the base of the upper 

 surface of the primaries is powdered as far as the yellow band with 

 greenish yellow, instead of being simply black; the transverse yellow 

 band is much larger, and the space between this and the submarginal 

 row of roundish spots is of nearly equal width across the whole wing, 

 while in P. ZoUcaon it broadens considerably in approaching the 

 inner border; the anal spot of the hind wings is of an uniform deep 

 fulvous color, bordered basally with blue, and on the opposite side 

 outwardly with black, and inwardly with a yellow spot; while, in P. 

 ZoUcaon, the color is paler apically, very distinctly pupiled with black 

 and bordered apically with black only; on the under surface of the 

 wings the black is much less conspicuous than in the Californian 

 species, and in particular there is a more or less distinct, large, yellow 

 spot occupying the basal half of the cell of the primaries, which is 

 wholly wanting in P. ZoUcaon. 



Sixteen specimens were obtained; most of them at Nulato, May 

 20th- 24th, but others June 5th, 6th and 14th, at a short distance be- 

 low the Ramparts, and also just above them. 



Mr. W. 11. Edwards sent me a specimen from the east coast of 

 Hudson's Bay, so that this insect occurs over a wide extent of 

 country. 



Parnassius Eversmannii Menetr. 



The single specimen, taken June 15th, at the upper end of the 

 Ramparts, does not altogether agree with the illustrations and descrip- 

 tions given by Menetries of his single individual from Kansk. In 

 particular, the spots on the under surface of the secondaries differ 

 from those of Menetries' figure, as those of his representation of P. 

 Wosnesenskii do, Dnly the red is of a deep tint, as in the figure of 

 P. Eversmannii — that is, the basal spot is not black, but of a bright 

 red edged with black, and the spot at the inner angle is also not 

 black, but bright red boi'dered with black. 



This list of species, though short, is instructive, since it shows that 

 the lepidopteran fauna of the Alaskan peninsula is not nearly so 

 arctic in its character as might have been imagined. Three of the 



