■202 LEPIDOPTERA. 



yellowish-browQ, with the bases of the latter dark chocolate; 

 ventral stripes pink. 



Or — yellowish- brown or greyish-brown, strongly marked 

 •or marbled with dark brown or red-brown ; top of the head 

 having a pale yellow streak, edged above with very dark 

 brown or black, and the head generally dark ; hnraps dark 

 ■chocolate, the tips in some instances red ; ventral surface 

 partaking of the colour and marbling of the dorsal area, but 

 the broad central stripe very conspicuous, ochreous-brown 

 with a smoky edging, or sometimes interrupted with darker 

 patches. 



July and August, on oak, birch, and sallow. Abroad it is 

 found to feed also on apple, blackthorn, and raspberry. 



Pupa short and stout ; wing-covers prominent, glossy, 

 irregularly thickened and hollowed, covered closely with 

 :abundant irregular striae, incised and placed in every direc- 

 tion ; eye and head-covers but little protruded ; limb-covers 

 flattened down but covered with wrinkling and incised striae ; 

 antenna-cases rather conspicuous, broad, edged on each side 

 with another ridge, and distinctly sculptured at the joints ; 

 dorsal and abdominal segments closely covered with abundant 

 •coarse pitting and minute swellings, except the hind band of 

 each, where is a smooth hoop ; cremaster triangular, running 

 into a blunt spike, black-brown ; general surface dark red- 

 torown. In the earth, but hardly making any cocoon ; or 

 ■under the moss on oak trunks. 



The moth sits by day upon the trunks of oak or fir-trees, 

 ■closely pressed to a flat surface and much protected by its 

 accurate resemblance to a patch of brownish-white lichen. 

 It is, however, easily disturbed, and active in hot weather. 

 It flies naturally at late dusk but keeps generally high up 

 about the trees ; and late at night will come freely to sugar, 

 or to light. A very local species and confined to woods, 

 usually large woods, in Kent, Sussex, Surrey, Hants and 



