BO ARM//). E—CABERA. 361 



dusky-black, each of the latter placed in a purple blotch ; legs 

 and prolegs reddish or purplish. 



Or — Pale yellowish-green, the dorsal portion shaded with 

 lemon-yellow between the subdorsal lines ; dorsal line reddish, 

 spotted as above ; subdorsal and spiracular lines yellow, 

 threadlike and indistinct ; incisions of the segments yellow ; 

 head dull green, lobe dashes dark brown ; legs pink ; a black 

 or reddish-black dot on the first pair of prolegs. 



Or — The black dorsal spots are placed in an ochreous 

 stripe, which often is enlarged into a series of dorsal 

 diamonds, separated by the white-margined black spots. 



Or — Grass-green with a broad reddish cloud on the back, 

 through which the dorsal line passes ; subdorsal lines broad, 

 yellow ; other body markings absent. 



All these variations shade into each other. (C. Fenn.) 



July, August, and September on sallow, alder, and birch. 

 According to Hofmann it is found on other deciduous trees. 

 It feeds at night, and usually conceals itself by day near the 

 ground. 



Pupa short and thick ; head and eye-covers but slightly 

 prominent ; limb-covers closely compressed, and those of the 

 antennas only just cross-sculptured at the joints ; wing-cases 

 thickened and smooth, glossy brownish-green, as is all the 

 front thoracic portion ; dorsal region pale brown ; abdomen 

 short and small, tapering very suddenly, chestnut-brown, 

 with the edges of the segments rather darker; anal tip 

 black, the cremaster shortly triangular, and tipped with a 

 little tuft of hooked bristles. 



In a thin cocoon of silk and earth, at the surface of the 

 ground, and ordinarily attached to a root, fallen leaf, or 

 stone. 



In this condition through the winter. 



The moth sits by day in sallow and other bushes, and may 

 be beaten out, but very often will just flutter down to the 

 ground, and is always sluggish. Its habits are quite like 



