136 COMMON BLUE. 



One variety, of a very small size, described as a separate species by 

 the name of ' Polyommatus Labienus,' had "the upper side of the 

 wings of a very pale lilac blue, and the spots on the under side 

 very small and pale, the inferior spot at the base of the fore wings 

 obsolete, only five spots in the curved row beyond the middle of the 

 discoidal cell, and the fulvous lunules almost obsolete, the two basal 

 spots on the costa of the hind wings large and black. " 



Another, a large female, the ' Polyommatus Thestylis ' of Jermyn, 

 in which the blue of the upper surface of the wings was more than 

 ordinarily extended, had the front wings with a large blackish spot, 

 obscurely engirdled with white, the hind wings with a similar spot 

 near the margin, and the number of eyes in all the ^wings]„varying 

 considerably. 



Another variety is the 'Polyommatus Lacon,' also of Miss Jermyn, 

 "in which the disc of the wings beneath is only marked with a tri- 

 angular spot; the hind margin of the anterior with a few" indistinct 

 dusky marks, and of the posterior ones with a fulvous band, terminated 

 internally with a series of black wedge-shaped spots, and externally 

 with black dots on a white ground. " 



Another had "the two spots towards the base of the fore wings on 

 the under side obsolete, and the upper side of the wings of the female 

 more strongly saturated with blue." 



Some males have the wings very transparent, and of a more than 

 ordinary silvery hue, and some females "very blue, with very distinct 

 red lunules. " 



The engraving is from specimens in my own cabinet. 



