BOA RMID.-E-A BRA XA S. 267 



spot ; another, very diflerent, but almost equally devoid of 

 darker clouding has the whole surface of all the wings of a 

 glossy, silky lead-colour, exactly as though " blackleaded " ; 

 again another, in which the usual markings are present, has 

 the outer half of each wing shaded with smoky-grey in 

 cloudy stripes which run from inwards ; and a fourth pos- 

 sesses a complete cloudy-grey central band crossing the hmd 

 as well as the fore wings. One of the most striking and 

 beautiful aberrations which has come under my notice is one 

 having the costal region broadly yelloiv, and all the ordinary 

 markings richly dark. It was taken near Tamworth by the 

 late Mr. W. G. Blatch, and is. I believe, still in his collection. 

 One equally remarkable was taken last year in Yorkshire by 

 Mr. D. H. Crabtree; its markings are all suffused, drawn 

 together, and crowded into the inner area of all the wings, 

 the outer third of each being left pure white. 



On the wing at the end of May and in June. There is a 

 record of a single specimen of a second generation taken in 

 October. 



Larva stout, cylindrical ; skin smooth ; head round, black, 

 very highly polished ; on the anal flap and anal prolegs are 

 shining black plates; general colour of the back lemon- 

 yellow'^ shaded with white at the divisions of the segments ; 

 dorsal line black, broad and distinct; there are three con- 

 spicuous black lateral lines, the spaces between them being 

 white, the uppermost of these lines is sometimes much inter- 

 rupted ; spiracles black ; below them is a broad yellow stripe 

 in which the lateral raised spots appear as numerous black 

 dots; undersurface black with three yellow stri]>es, the 

 central one broad and whitish at the divisions, but these 

 three stripes are occasionally white ; legs shining black. 



(0. Fenn.) 



August to October on wych-elm (inmns moidaua), but if 

 this food fails it will eat beech and hazel. Abroad it is said 

 to feed upon Frunus paclus. The Rev. Joseph Greene says, 



