134 THE BUTTERFLIES OF THE BRITISH ISLES. 



uniform greyish ; the spots are only rarely at all distinct, and 

 then only one, or perhaps two, on a wing, and not infrequently 

 they are entirely absent. This form occurs in Scotland, 

 especially in Aberdeenshire and Sutherlandshire, also in the 

 Isle of Arran, in the Orkney and Shetland Isles, and in the 

 Outer Hebrides. Kane states that he has met with single 

 specimens at " Killarney, Westmeath, Galway, and Sligo." 



In some localities, such as Carlisle, Rotherham, and others 

 in Yorkshire, forms intermediate between the type and var. 

 philoxenus are found ; modifications of the type form in the 

 direction of var. scotica occur in Cumberland, Northumberland, 

 and Co. Leitrim, in Ireland ; and forms approaching the type 

 more nearly than var. scotica are met with in the Glasgow 

 district, and at Pitcaple in Aberdeenshire. 



The egg is very pale greenish-yellow at first, but the green 

 fades, brownish blotches appear, and some dark markings 

 appear around the upper part a short while before the cater- 

 pillar hatches out. It is finely scored almost from the base to 

 the top, which is depressed, and has a raised boss in the centre, 

 as in the egg of the Small Heath. 



From some eggs sent to me in July, caterpillars hatched in 

 August. They fed on ordinary meadow grass, and in September 

 were figured, when they were about half an inch in length. 

 Head shallowly notched in front, green, roughened with whitish 

 dots, eyes and jaws brownish. Body green, roughened with 

 white dots, with darker line down the back, and paler, almost 

 white lines along the sides, anal projections reddish (these were 

 greenish when younger). 



The figure of the full-grown caterpillar is after Buckler, who 

 describes it as " of a bright green, with dark bluish-green dorsal 

 line, edged with pale lemon-yellow, the sub-dorsal and spiracular 

 lines are of the same pale yellow, but the sub-dorsal is edged 

 above with dark bluish-green, and between these two lines is 

 an interrupted streak of a darker colour, posteriorly with a slight 



