222 THE MOTHS OF THE BRITISH ISLES. 



on tree-trunks. Its haunts are in damp woods and plantations, 

 and it occurs in most of the Enghsh and Welsh counties, although 

 it is rarely common, except in the south of England. In Ireland 

 it has been noted as scarce in counties Wicklow, Kerry, Galway, 

 and Sligo. 



The range abroad extends to Amurland and Japan. 



Blomer's Rivulet {Asthaia blomcri). 



The earliest British specimens of this species (Plate 91, 

 Figs. 8 ^ and 10 9) were taken in Castle Eden Dean, Durh-\m, 

 and among the first to detect these was Captain Blomer, after 

 whom Curtis named the species in 1832. It is still found in 

 that locality, but is also known to occur in Cumberland, Lanes., 

 Yorks., Derby, Staffs., Merionethshire, Worcester, Hereford, 

 Glamorgan, Gloucester, Somerset, Devon, Wilts., Oxford, and 

 Bucks. 



The slender caterpillar is yellowish green, generally marked 

 with pinkish-brown on the back, but most or all such markings 

 may be absent. It feeds, on wych elm {Ulmtts niontand) (Plate 

 90, Fig. i), in August and September. The moth is out in 

 June and July, earlier or later in some seasons. As a rule, it 

 sits on the trunks of beech trees, but I have seen it on the 

 stems of cherry and fir, though hardly ever on wych-elm. 

 Occasionally, newly emerged specimens have been noted (^r\ 

 the leaves of dog's mercury {Mercnrialis perennis). 



The range abroad extends to Amurland and Japan. 



Lime-speck Pug {Eupithecia oblongata). 



The characteristic features of this white, or greyish white, 

 species (Plate 93, Figs, i and 4) is the bluish grey blotch on 

 the front margin, in the lower end of which is the black discal 



