HIPPARCHIA HYPERANTHUS. 171 



long, the larva is greenish-grey, the head pale brown, 

 the strong dorsal line dark, the subdorsal line paler 

 than the ground but edged with darker, the spiracular 

 line whitish with dark edges, the space between the 

 subdorsal and spiracular lines is slightly darker than 

 the back; the two anal points short but distinctly 

 formed. Of the full-grown larva after hibernation I 

 have no notes, nor of the pupa, except that it is very 

 dumpy in figure. (J. H., 12, 10, 85.) 



Erebia Cassiope (Epiperon). 

 Plate VI, fig. 2 (see ante, p. 33). 



For three years following, 1874-75-76, I obtained 

 eggs through the kindness of Mr. W. H. Harwood ; 

 these eggs came to me in the first or second week of 

 July, the larvaB hatched between July 15th and 20th. 

 I got them to feed on Aira jprcecox and A. ccespitosa, 

 they seemed to thrive through the autumn, and by the 

 beginning of October they attained the length of 

 10 to 12 mm. ; then they would hibernate till towards 

 the end of next February, when they began to move 

 again, but after that every year they died off, so that I 

 never brought one to full growth. 



The egg is laid singly, standing on end, upon grass 

 blades, and is in shape cylindrical, twice as long as wide, 

 its top diminishing in two steps, its centre plain, the 

 sides with eighteen broad shallow flutings, neither 

 clearly defined nor quite straight, with delicate and 

 regular transverse reticulation, the shell slightly 

 glossy ; the colour at first, for about twenty-four hours, 

 bright yellow, afterwards duller; in three or four 

 days pale dull yellow, blotched pretty evenly all over 

 with circular patches of small pale brown dots, the 

 centre of each patch densely spotted ; in about ten 

 days the whole colouring grows duller, and there is 

 not so great a contrast between the ground and the 



