BROWN SILVER-LINE. 327 



The moth, which is out in July and August, is often common 

 in gardens and orchards where bush fruit is grown, pretty well 

 throughout the United Kingdom. It appears to occur only 

 rarely in Ireland. 



Abroad, the range extends to Amurland, and a form is found 

 in Labrador. 



Rannoch Looper {Thamnonoma Irunneafd), 



All the wings are of a rusty ochreous colour, sometimes, 

 chiefly in the male, inclining to a purplish tint on the fore 

 wings ; the brownish cross lines are usually most distinct in the 

 female, which sex Hiibner figured as pinetaria. (Plate 143, 



Figs. 4 6, 5?.) 



The caterpillar is reddish brown, with a black-edged dark- 

 green irregular line along the middle of the back ; a white line 

 on each side of the central one, and following this are a dark- 

 brown shade-like stripe and some brownish-green lines ; the 

 line along the spiracles is whitish, inclining to yellow. In 

 general appearance it closely resembles a twig of bilberry 

 {Vacciniiwt), upon the foliage of which plant the caterpillar 

 feeds in the spring. 



The moth is out in June and July, but in the British Isles it 

 is only to be obtained in Perthshire and northwards in Scot- 

 land. Black-wood, Loch Rannoch, is the original, and a now 

 well-known, locality for this species, which Curtis in 1828 

 figured as Speranza sylvaria. 



The range abroad extends to Amurland and Japan, and to 

 North America. 



Bro\sn SilYer-line {Lozogramma {Phasiafie) petraria). 



The two cross lines on the pale-brown, sometimes pinkish, 

 fore wings, are edged with whitish, but this is most distinct on 



