272 THE MOTHS OF THE BRITISH ISLES. 



sometimes greenish, without humps or projections. It feeds^ in 

 the summer, on lime, birch, oak, hawthorn, etc. A chrysaHs 

 which I took out of its puparium (two leaves spun together with 

 silk) on July 9, 1907, was green, with the upper surface tinged 

 with yellowish ; a dark-green central Hne, and a series of dark- 

 green irregular marks on each side ; the tail pointed and 

 furnished with reddish hooks. 



The moth is out in August and September, and may often be 

 seen sitting on the boles of trees, generally low down. The 

 species is widely distributed over England, but is much more 

 frequent in the south than in the north. It has been recorded 

 from Swansea in Wales ; from Dumfries, Dunoon, and Mon- 

 teith, in Scotland ; and from near Derry, Hazlewood (Sligo), 

 Mote Park (Roscommon), and Clonbrock (Galway), in Ireland. 



" . \ Canary-shouldered Thorn {Ennomos ahuaria). 



- This species (Plate iii. Figs, i, 2) is generally easily recog- 

 ^ nised by the canary yellow coloured hairs of the thorax. The 

 fore wings are yellowish, sprinkled with purplish grey, and 

 crossed by two curved greyish-brown lines, which not infre- 

 quently fall close together on the inner margin. In some female 

 specimens that I reared from eggs, received from York, the 

 wings are more or less tinged with dull tawny brown, especially 

 on the outer area, and in two of them the thorax is also 

 brownish tinged. 



The at first green, and afterwards blackish slate-coloured, 

 egg, with whitish ring, and the caterpillar are shown on 

 Plate 1 10, Fig. 2, la. The latter is brownish, mottled with 

 purplish above, and inclining to greenish below ; head, rather 

 paler brown. It feeds, from May to July, on birch, alder, etc. 

 The moth is out in the autumn, and occurs in suitable woodland 

 and marshy places over England, Wales, and Scotland to 

 Moray. It has been found in many parts of Ireland. 



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