228 THE MOTHS OF THE BRITISH ISLES. 



represents a variegated modification of the last form, for which 

 the name bajtdana was proposed by Gregson ; Fig. 1 1 depicts 

 another specimen, which in its light-brown colour closely 

 approaches the Orkney form var. ochracce, Gregson = orcadensis^ 

 Prout. 



Specimens from North Devon have a rather darker tone of 

 the typical coloration, and those from North Wales and from 

 Ireland incline to brownish. 



The rather stumpy caterpillar is greyish brown above, and 

 pale greenish or yellowish below ; three darker brown lines 

 along the back ; head, blackish. It is found from late June to 

 early August, in the seed capsules of catchfly {Sileiie i7tflata^ S. 

 maritima^ etc.). Plate 92, Fig. 4, from a coloured drawing by 

 Mr. A. Sich. 



The moth is out in May and June, and is widely distributed 

 over the British Isles. 



Pimpinel Pug {Eupifheda pimpinellafa). 



A portrait of this species, which, as a British insect, was first 

 noted in Suffolk nearly sixty years ago, will be found on Plate 95, 

 Fig. I. The fore wings are pale brownish, except on the front 

 edge, which is greyish ; the black discal spot is distinct and 

 rather long; the median vein and its branches are dotted with 

 black, and most of the cross lines are only distinct on the front 

 margin, where they are blackish ; the rather wavy whitish sub- 

 marginal line is sometimes marked with blackish. In some 

 specimens the costal half of the fore wings is greyish, and the 

 other portion only tinged with pale brownish. 



The long caterpillar is green, with three purplish lines along 

 the back, the central one wider and more distinct than the 

 others ; the head is purple. Sometimes purple, with two lines 

 of a deeper shade on each side of the back (Crewe). It feeds, 

 in the autumn, on flowers of burnet-saxifrage {Pimpinella), 



