LA KENTID.E—E UPITHEC/A . 151 



further changed in that the anal tuft becomes white. In 

 the Yorkshire district in which melanism is so prevalent 

 this species loses the silky black and takes a coarser black 

 variation. In Scotland the green seems often to be replaced 

 by brown — if, indeed, this also is not a result of fading — 

 and from Edinburgh Mr. W. Evans has sent me a form in 

 which the ground colour being rather pale green, the central 

 band of the fore wings is filled in with smoky-black, and a 

 similar but still broader band of the same colour crosses the 

 hind wings. 



On the wing in June and July. 



Larva short and thick ; ground colour very pale yellowish- 

 green ; dorsal line varying mijch in intensity of colouring, 

 sometimes rusty-red, sometimes dark green, frequently very 

 indistinct, and sometimes altogether wanting ; spiracular line 

 rather darker than the ground colour ; segmental divisions 

 reddish ; whole body very transparent, and the circulation 

 visible under the dorsal line ; back sprinkled with a few short 

 hairs. When j'oung darker and having the dorsal stripe 

 broad, distinct, and rusty-red. (Rev. H. H. Crewe. j 



April and May, in the blossoms of apjDle, both cultivated 

 and wild, and of pear ; drawing the petals together and 

 feeding within. 



The winter is passed in the egg state. 



Pupa. Thorax and wing-cases yellow suffused with olive ; 

 abdomen taf>ering, the lower divisions and tip blood-red. 

 (H. H. C.) In a slight cocoon under loose bark or moss 

 on apple trunks, or in the ground. 



The moth sits by day on the trunks and branches of apple 

 trees, or on palings or any other suitable jilace in their 

 vicinity, and if disturbed flies but to a verj^ short distance. 

 At dusk it flies about the apple trees, and later will some- 

 times come to a street-lamp. Very abundant in the suburbs 

 of London, and most destructive in some seasons to the apple 



