302 LEPIDOPTERA. 



green, aud having' a protruding angle in its middle ; extreme 

 margin edged with a scalloped black-brown line ; cilia silvery- 

 white, barred at the tip of each scallop with black-brown. 

 Female very similar, but a little larger and stouter. 



Underside of all the wings shining greenish-white ; costa 

 of the fore wings broadly tinged with light brown ; cilia 

 chequered as on the upper side. Body and legs pale brown. 



Not variable, but subject in a high degree to fading, 

 especially so during life, so that, nnless captured immediately 

 after emergence, no specimen which has f3own is really perfect 

 in colour. 



On the wing at the end of June and in July. 



Larva elongated, rigid, rather rough, narrowed in front ; 

 head and second segment strikingly bifid ; general colour 

 pale green ; head, legs, prolegs, and bifurcations of the 

 second segment reddish-brown ; a dull purple dorsal stripe 

 from the second to the sixth segment terminates in a tri- 

 angular blotch produced laterally ; on the third and fourth 

 segments this stripe has a whitish edging, through which 

 runs a purple line ; last three segments tinged with purplish- 

 brown ; those between the sixth and the eleventh have each 

 a reddish dorsal S})0t, edged on each side with yellow ; ven- 

 tral stripe cloudy-white, margined with pale ]iur})le, most 

 conspicuous on the fifth and sixth segments. (C. Fenn.) 



Extremely variable ; one of those figured by Mr. Buckler 

 is purple, with an interrupted black dorsal line, most distinct 

 on the first and last three segments ; parallel white lateral 

 lines on the former, and on the following five middle seg- 

 ments each a large white V, its apex j)ointing forwards. 

 Another, although purple at each end, has these middle seg- 

 ments bright green, each with a white bar in which is a 

 black spot ; and another is light bright red-brow a with less 

 distinct markings. 



August to May or June, on oak, hawthorn, blackthorn, 

 birch, lime, rose, honeysuckle, jasmine, and currant ; but the 



