io8 LEPIDOPTERA. 



for the final chauge. Of fourteen larvaj thus reared, 

 Mr. Farn found that two-thirds produced male butterflies. 

 Mr. Buckler states that for a day or two after each moult the 

 larva was very pale, and the colour of the under side of the 

 sallow leaf, at which time it remained underneath the leaf, 

 but when the brighter green appeared it returned to the upper 

 side. 



When well grown, each larva would carpet an entire 

 leaf on the upper side with silk, and generally move to 

 another leaf to feed, returning to its favourite spot to rest. 

 The pupa is in colour singularly like the leaf to which it is 

 suspended. 



The male is an exceedingly bold, swift, and powerful 

 insect ; not destitute of curiosity, as it will sometimes fly 

 across a field to look at an intruder ; and when struck at 

 with a net, will more frequently fly at — and past — its assailant 

 than from him, a manceuvre which it performs with entire 

 security. It is of an aspiring disposition. Its native sallow 

 is far beneath its notice. It loves to sit on the outside 

 branches of tall oaks, upon the leaves, now and then flying, 

 with great ease and grace, around and over the trees, and 

 even, if it meets with another male, engages in a trial of 

 strength, soaring to a great height in the air. Its partiality 

 to a particular branch or twig is so gi'eat that, when one is 

 caught, another will quickly occupy the same place. Mr. 

 Tugwell has taken half a dozen in succession from the same 

 branch, and has known dozens to be secured from it in differ- 

 ent years. It sits on the outside of the favourite twig, head 

 outwards, and when struck at flies straight up. but boldly 

 returns to the same place, and has even been known to settle 

 on the entangled net ! But it is not exclusively attached to 

 oaks. Tall hazels and chestnuts are equally appreciated, 

 if they happen to skirt a wood on the crest of a hill. It 

 is, however, exclusively attached to woods and their imme- 

 diate neighbourhood. In wet and stormy weather it has 

 been found at rest upon the trunks of the trees about which 



