Lepidoiitera of the. Altai Mountains. 345 



(fig. 8) with much fulvous in the fore-wing, and a third 

 (fig. 9) in which the markings are at a minimum ; fig. 7 is 

 possibly either a hybrid between ke/ersteini and maurisius^ 

 in whose company it occurred, or an aberration of one or 

 other, T cannot tell which. Kcfersteini appears to be 

 equally common in the East Sayansk and Chamardaban 

 Mountains, whence it was originally described, and 

 probably occurs right through the mountains of Central 

 Siberia. It appears in the latter half of July, but I did 

 not take the females till the end of the month, and they 

 appear to fly but little, as most of those I found were 

 settled on grass stems, or kicked up out of the long grass. 



124. U. tyndants, Esp. 



This was an abundant species at from 6000 — 8000 feet 

 in the latter half of July, on similar ground to that which 

 it frequents in the Alps. The form iound in the Altai is 

 nearer to var. dromus than to tyndarus from the Alps, but 

 can be distinguished from the former by the great inward 

 extension of the fulvous on the fore-wing above, which 

 extends half-way down the wing, and by the underside of 

 the fore-wing having no transverse band as in dromus, and 

 in the Caucasian form which is referred to dromus. In 

 both these characters it resembles the American variety 

 from Colorado more than those from Armenia or North 

 Persia, known as var. dromulus, Stgr., and var. iranica, 

 Gr.-Gr. They are not, however, like Staudinger's 

 description of var. sihirica from Tarbag itai, being no larger 

 on the average than Alpine specimens, and the spots on 

 the hind -wing are sometimes very conspicuous and some- 

 times almost absent. I can distinguish most of them, as 

 also those taken by Leder in the Sayansk Mountains, from 

 any of the named varieties by the inward projection of the 

 chocolate patch on the upperside of the fore-wing. In all 

 other forms of tyndarus, except, perhaps, those from the 

 Caucasus, the chocolate patch on the fore-wing above is 

 rather a band fairly straight on the inner margin ; in the 

 Altai form it runs in a blunt point moi'e than half-way 

 towards the base of the wing. On tlie underside the whole 

 centre of the fore-wing is plain chocolate, as in var. 

 ottomana, without any transverse band as in dromus. 



125. E. mthiops, Esp. 



This was common in the forests round Lake Teletskoi 



