314 Mr. H. J. Elwes 07i the 



7. P. tcncdius, Ev. 



Also taken at Tcliingistai by Ruckbeil, but not by 

 others. According to Herz, it is one of the earliest 

 butterflies to appear in Nortli-East Siberia. A specimen of 

 dclins in Staudinger's collection from the Altai (ex-coll. 

 Kindermann) has markings which resemble those of 

 tcncdius to some extent, but I doubt the possibility of 

 hybridism between these species. 



8. P. clarius, Ev, 



Only taken in one place near the west end of the 

 Tchuja Steppe at about 5500 feet, on dry, hot, rocky 

 slopes overgrown with grass, on Jul}' 20th. The males 

 were already worn, but the females fresh. I did not 

 distinguish this from dclius by its flight or appearance till 

 I had the female in my hand, when the pouch at once 

 showed what it was. The inconstant variety known as 

 dcntata was taken at Justed by Ruckbeil. 



9. F. stuhhendorjl, Men. 



Common on the Kurai Pass on July 25th, at 6000 — 7000 

 feet; the males only flying on marshy alpine meadows below 

 steep rocks, with eversmanni and dcliits. The only two 

 females I took were much lower down in swampy larch 

 forest. Jacobson also got one or two at Ongodai. 



10. P. eversmanni, Men. 



I was surprised to find this rare species, hitherto only 

 known from Central and Eastern Siberia, not uncommon in 

 the Altai. I first took it near Darkoti in marshy alpine 

 meadows, below rocks where snow was still lying at 7000 

 feet on July 18th, but only males were then out; arid 

 though I waited four days in this camp for the females I 

 was obliged to leave without getting any. I afterwards 

 got two worn males on the Kurai Pass. It agrees 

 perfectly with Eversmann's type from Kansk, and with 

 those taken by Leder at Podeika, and by Herz on the 

 Vilui and Vitim rivers, and is rather smaller than those 

 from the Amur, where, according to Graeser, its food plant 

 is Corydalis gigantca. 



11. Aporia cratiegi, L. 



This was one of the most generally distributed butter- 

 flies in the districts I visited, I first saw it at 7000 



