DREPANULWyE. 65 



E. Adkin is a very curious specimen, having all the markings 

 in the middle of the fore wings strongly developed. 



On the wing in May and June, and a partial, or complete, 

 second generation in August. 



Larva moderately stout, of even thickness except that the 

 last three segments taper considerably, the thirteenth ending 

 with a raised point and being destitute of the anal prolegs ; 

 on the third to the sixth segments are pairs of upright 

 pointed dorsal tentacles. Head pale yellow, bifid, rather 

 flattened in front, the lobes outlined with blackish and the 

 mouth dark. The usual tubercles of the body faintly 

 whitish and each emitting a hair. Dorsal half of the body 

 yellow or ochreous ; dorsal and subdorsal lines brownish, 

 interrupted ; incisions of the segments also brown ; dorsal 

 tubercles tipped with reddish ; lower half of the body pale 

 green, or greyish-green, with the legs, prolegs, and hairs of 

 the same colour, the two body colours being separated by a 

 dark brown lateral line, beneath which is a black dot below 

 each tubercle. When younger the anterior segments are 

 green between the tubercles, and the remaining dorsal surface 

 is more purplish. 



July, September, October ; in two broods, on birch and 

 occasionally upon alder, feeding quite openly upon the 

 leaves, but much concealed by its resemblance to a rolled 

 or shrivelled young leaf. 



Pupa rather short and stout with a rather long curved anal 

 spike, dark chestnut-brown, wing- and limb-cases more purple- 

 brown. In a strong brown silken cocoon placed in a drawn- 

 together leaf, or turned-down portion of a leaf, on the tree, 

 the edges of the leaf firmly spun together. The pupas from 

 the later generation of larvae fall to the ground with the 

 leaves and lie through the winter. 



The moth flies at night, but is easily disturbed during the 

 day, when it flies wildly, with a dashing erratic motion, to 

 VOL. III. E 



