152 BROWN AKGUS BLUE. 



Castle; Jardine Hall, Dumfriessliire; King's Park, Salisbury 

 Crag, near Duddingstoiie Loch, the Pentland Hills, and Arthur's 

 Seat, near Edinburgh, where the 'gaudentes rure camgense' will 

 present more attractions to the entomologist than the "Modern 

 Athens" itself. 



For the most part this Blue seems to prefer the neighbour- 

 hood of the coast. 



It is double-brooded, appearing in June and in August. 



The caterpillar is found in April and in June. 



It is said to feed on different grasses, and the wild strawberry. 



The expansion of the wings is a little over an inch. The 

 fore wings are glossy brownish black, with a small crescent- 

 shaped black spot near the middle. The margin is narroAV 

 and pale whitish grey, with very fine vein lines. The hind 

 wings are of the like ground colours, with a row of bright 

 orange-coloured crescented spots, largest on the inside part, 

 and nearly obliterated on the outer; in some specimens they are 

 all scarcely discernible. 



Underneath the ground colour of the fore wings is a chaste 

 grey, with a row, more or less curved, of clear white spots, 

 within which the spot shews through white, sometimes enclosing 

 a black one; outside the white row is another of orange, more 

 or less bright, followed by a slender black line; the inside border 

 of the fringe, which is white. The hind wings are of the same 

 ground colour, tinted with blue about the base, near which 

 there are three white spots, two others at and near the upper 

 edge, the former the larger, and an irregular row of white 

 spots, followed by another of orange ones, dotted with black 

 on their lower corner, bounded by the black line which makes 

 the inside of the fringe, which is white. 



"The caterpillar is green, with a pale angulated row of dorsal 

 spots, and a central brownish line." 



The changes in the markings on the wings in this insect, 

 in different latitudes of the country, are certainly very curious; 

 but though described as three separate species, there seems 

 every reason to believe, or rather, in fact no reason to doubt, 

 but that they are all referable to one and the same butterfly — 



