2g8 LEPIDOPTERA. 



Underside of the fore wings very pale reddish-brown, 

 shading to dirty white along the dorsal margin ; second 

 line faintly visible ; discal spot white. Hind wings of the 

 same colour with the faint transverse lines just visible. 

 Body and legs light brown. 



On the wing at the end of June and in July and August, 

 but whether in one or two generations is not yet clearly made 

 out. I made a journey of one hundred miles in August 1902 

 to search for a second brood in a place in which the insect 

 had been locally common earlier in the summer, but was un- 

 able to find a specimen. 



Larva slender, stoutest at the eighth segment, with the 

 back tapering each way, slightly in a curve ; the head 

 narrower than the second segment, glittering clear reddish- 

 chestnut ; collar of a much darker brown, reaching on the 

 back across the whole length of segment 2, but curving for- 

 ward at the sides, divided by a pale line ; there is a border of 

 darker brown on each side of this line and for a short way 

 along the front and back edges ; skin glittering, rather trans- 

 lucent, of a pale yellowish-stone tint, but all the middle space 

 of the back shows ashy-grey from the internal vessels, and 

 through this space runs the darker interrupted pulsating 

 dorsal vessel ; the segmental folds are also darker ; spiracles 

 prominent but indistinct, ringed with brown ; usual dots very 

 tiny, jet black, placed on large shining warts; on each of 

 segments three and four there is a pair of large roughly 

 triangular warts near the front edge, and four rounder ones 

 on each side ; all these are noticeably darker than those on 

 the other segments, and appear to form a distinguishing 

 feature. (W. Buckler.) 



September till May on the leaves and blossoms of bird's- 

 foot trefoil and clover, especially when dead and decayed, 

 also on the dead leaves of knapweed, plantain, grass, and 

 other herbage close to the ground ; even on the dead tangle 

 of Zustcm mariiM under stones at high-water mark, but 



