GENUS PARNASSIUS 81 



This is the largest known variety of Smintheus, and I there- 

 fore call it JMagnus : it is also one of the most northern in habitat, 

 being in this respect exceptional, as the more northern forms are 

 usually the smaller. The male is darker on fore wings than any 

 other form of the Smintheus group. The female is also very 

 large and dark, and with very large red spots, and the discal spots 

 are with a white spot off from the center towards the outside. 



14. Parnassius Eversmanni. Not elsewhere illus- 



trated, except in Edwards' Butt. N. A. 

 Plate II ; Figure 14. 



This figure is a photographic reproduction of a lithograph plate 

 issued in the Butterflies of Nlorth America, an expensive work, 

 in 1874. The example from which the lithograph was made was 

 taken on the Yukon River, 200 miles below Fort Yukon, by Lieut. 

 Dall, June 15, 1864 ( ?). It is unique to this day, no others hav- 

 ing been taken since that time, that have ever been heard of. Very 

 likely it may be common enough in suitable localities, but, judging 

 from my experience among the butterflies, the banks of a river is 

 a very unlikely place to find Parnassians ; and, if one specimen 

 can be taken there, it is probable that there are plenty more in 

 some more suitable locality. 



Thor is the name of a dimorphic female of Eversmanni, two of 

 which were taken at the same time and place as Eversmanni. It 

 has never been figured ; but is said to be white, instead of yellow, 

 and that it has golden-yellow hairs on the body, and some golden 

 color at the base of the wings. Further than that I have never 

 seen any description of it. 



15. Parnassius Nomion. 



No figure. 

 Nomion is said to have been taken at St. Michaels, Alaska, in 

 the old days, before that territory became an American posses- 

 sion, but no one has taken it since, that I know of ; although a 

 good American collector, Mr. Nelson, was located there for sev- 

 eral months, on purpose to make collections, on account of the 

 Smithsonian Institution at Washington. The species has been 

 figured two times, in Europe, but never in this country. 



