SERICORIDJE—PENTHINA. 369 



the costa and hinder area with dull white dots. Hind wings 

 leaden brown. 



On the wing in June and July. 



Larva apparently undescribed. 



ilay and June, on bilberry ( VacrAiimm myrtillus), drawing 

 together the young shoots and feeding on the leaves. 

 Assuming the pupa state in the larval habitation. 



The moth is always found among bilberry (whortleberry) 

 on hills : it sits on the plant in the daytime, and when the 

 weather is warm flies swiftly in the sunshine through the 

 afternoon. Usually a northern species, but it is fairly 

 common on the hills of Surrey and Kent, where its food- 

 plant covers the ground. There must be other localities in 

 the South, but except that of Canon Cruttwell, at Porlock, 

 Somerset, I find no other records till we arrive at the Black 

 Mountain, Herefordshire ; thence it is common on the hills 

 of Derbyshire and Staffordshire, and in Cheshire, Lancashire, 

 and the moors of Yorkshire. In Wales it must surely occur, 

 but I have no record. In Scotland it is common on the 

 mountains of Perthshire and Ross-shire, and less common in 

 Aberdeenshire. In Ireland, found in Antrim and Kerry, 

 and probably in intei'mediate suitable spots. Abroad it is 

 found in Holland, in North and Central Germany, Switzer- 

 land, Central and North Italy, Galicia, Livonia, and 

 Scandinavia. 



9. P. staintoniana, Bon: — Expanse ;^ inch (Ij-16 mm.). 

 Fore wings rather narrow, dull black, two-thirds of their 

 length, with two white, somewhat hooked, indentations ; 

 remainder dull white, with a brown or black cloudy streak 

 before the apex. 



Anter.r.ffi thick, dull black; palpi, head, and thorax brown- 

 black ; abdomen sooty black, with a paler anal tuft. Fore 

 wings rather narrow, costa flatly arched, apex bluntly 

 angulated, rather squared ; hind margin nearly straight ; 



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