SATYRID^. 213 



antenna- and leg-cases are margined with dark brown, and 

 the wing nervures indicated in the same colour. The surface 

 is very slightly glistening. (Buckler). 



It does not appear from what source the pupa was 

 obtained. 



Emphatically a mountain species. Found rarely, as far as 

 is known, at a less elevation than from one thousand to 

 fifteen hundred feet. Mrs. Eraser's remarks in the Entomo- 

 logists^ Monthhi Magazine for 1880, are too interesting to be 

 overlooked. " Of the four localities in Perthshire, where I 

 have met with it, three are on the northern slopes of moun- 

 tains, and thus peculiarly exposed to cold winds. During 

 last summer, I observed it on the wing for the first time on 

 June 16th. The day was bright and sunny with a strong 

 wind from the east ; only a very few specimens were seen, all 

 males, and all with the velvety appearance which betokens 

 recent emergence. On June 25th it was out in great abun- 

 dance, and on Julj' 1st still appeared in large numbers, some 

 worn and tattered, but many, of both sexes, appeared to be 

 freshly out. Among the Perthshire hills there is one, which, 

 though only between two thousand and three thousand feet 

 high, is rather famous as a place where strangers are apt to 

 lose their way, and wander miles in a direction opposite to 

 that from which they started. From half way up the moun- 

 tain to the summit, there ai-e innumerable high ridges of 

 rock, and, between these ridges, rills of sparkling water, 

 foaming and tumbling over rocks and stones, or sometimes 

 forming still pools, which reflect the heather-clad banks ; and 

 here and there huge masses of rock are lying, which must 

 in times gone by, have rolled down from the mountain top, 

 but now are overgrown with heather, blaeberry, and crow- 

 berry. On July 1st we ascended this hill from the north, its 

 steepest and most rocky side. The morning had been cold 

 and misty, but the clouds gradually lifted, and at last the sun 

 sent forth a blaze of heat, and immense numbers of insects 

 appeared on the wing. At an elevation of one thousand feet. 



