Lepidoptera of tJie Altai Mountains. 359 



thing like it may probably be found in North-East Siberia, 

 but as tunga is in the type specimens, and in all the others I 

 have seen unmistakably different, I think the name of also 

 must remain as heretofore a synonym of semidea. The 

 types of tunga were taken by Leder in the East Sayansk 

 Mountains, and the species may probably occur also in the 

 high mountains of the Altai. 



144. Satyrus semele, L. 



This was taken at Saisan in the Irtysch Valley by 

 Ruckbeil, but not seen by me. 



145. Satyrus heydenreichei, Led. 



Taken by Kindermann and Ruckbeil, but not seen by 

 me. 



146. S. hippolyte, Esp. 



A small pale-coloured variety of this, showing much less 

 of the yellowish colour on the band of the fore-wing and 

 hind-wings than in any of those I have from the Thianshan, 

 Orenburg, and other parts of Western Siberia, was very 

 abundant on the bare Tchuja Steppe (6000 feet) when I 

 crossed it on July 19th, and was evidently fresh out. It 

 made short flights close to the ground and rested on the 

 bare earth on its side, and was quite easy to catch. On 

 this day fresh snow was falling and lying on the moun- 

 tains round, almost to the level of the steppe, and the 

 cold perhaps accounted for the comparative sluggishness 

 of the insect. 



147. S. autonoe, Esp. 



This insect came out abundantly about the same time 

 as the last, and was common from the Upper Tchuja 

 Steppe down to about 2000 feet on the Tchulishman river, 

 and also at Ongodai. There is considerable variation both 

 in size and colour, and some of them might be called var. 

 sibirica, Stgr., which is described from Kentei as having 

 the transverse band more or less whitish or brownish. 

 This would apply to specimens from Boro-choro in the 

 Thianshan, whilst four pairs from Amdo in North-East 

 Tibet, which I have in Grum-Grshimailo's collection 

 under the name of var. extrema, Alph., show this character 

 very strongly developed. 



