186 LEPIDOPTERA. 



brown, mottled inwardly with white, its outer margin erect 

 and evenly curved ; immediately following is a broad whitish 

 transverse stripe, shaded outwardly, and expanding into a 

 white dorsal blotch ; centi-al band oblique, black, broadest 

 in the middle and there angulated ; ocellus and also three 

 pairs of costal dots sharply white, their intervals black dusted 

 with yellow; cilia white, tij)ped with smoky black. Hind 

 wings and their cilia pale smoky grey. Female similar. 



Underside leaden black ; costal dots of the fore wings 

 -white. 



On the wing at the end of May and in June. 



Larva slender, greenish yellow on the sides, afterwards 

 becoming dirty dark green; internal dorsal vessel black- 

 grey ; head honey yellow, afterwards brown ; dorsal plate 

 black, rounded, divided into three parts. 



June to August, in spun - together upper leaves of 

 Vaccinium myrtillus, V.vitis-idcv a and V.uliginosmn; pupating 

 among fallen leaves. (Hofmann.) Von Heyden says: "I 

 found the larva in great plenty on hedges of barberry 

 ■{Berbcris vulgaris). It spins the leaves flatly one upon 

 another, and gnaws them much, so that they have often a 

 brown appearance." There appears to be no mistake in 

 this, since the moths were reared ! Other food-plants are 

 said to be Ledum jmlustrc and Cornus sanguinea. 



A very pretty and lively species, flying briskly in the 

 sunshine, and taking advantage of the shelter of any bank 

 or hollow covered with whortleberry for protection from the 

 .^ool wind. In such spots flitting about continually or sitting 

 upon the leaves of the plants. Usually a northern hill 

 species, but I have taken it in Surrey, and there are records 

 of its occurrence in Hants, Dorset, and Devon ; common in 

 Herefordshire, Cheshire, Lancashire, and Yorkshire, and 

 becoming more abundant in Durham and Westmoreland. 

 In Wales it is common on the Preselley Hills in Pembroke- 



