BRITISH BUTTERFLIES AND MOTHS 



food-plants consist of apple, birch, blackthorn, haw- 

 thorn, oak, poplar, sallow, and other plants. The 

 fawn-coloured imago is frequently tinged with reddish, 

 and it has cross lines, and a spot on all four wings, with 

 leathered antennae. 



Scalloped Oak. — {Crocallis elinguaria.) Of common 

 occurrence in most parts of the country, this moth is, 

 as a rule, on the wing in July and August. The larva 

 will take almost any kind of green leaves, and shows con- 

 siderable variation, from ochreous-grey to darker colour, 

 with a purple splash. There are diamond-shape marks 

 along the back, and the raised protuberance on the last 

 segment has a black margin. The lemon-yellow wings of 

 the imago have a patch of light brown on the fore pair, 

 with indistinct freckles around all the edges, and a spot 

 on each. 



Swallow-Tail. — {Ourapteryx sanibucaria.) This light 

 yellow moth, with pointed fore and hind wings (Fig. 40). 



5ual low- tall (?^ MoH-i 



F.gr/^o 



is sure to arrest attention during July in the region of 

 gardens, lanes, and woods, but it is rare in Scotland. 

 The brownish larva has purplish or reddish variegations, 



88 



