COMMON BLUE. 145 



"alias," as shewn by its synonyms and supposed distinctions. 



Some individuals exhibit the double appearance of the male 

 and the female. 



Others have the sides not correspondingly alike. 



Some differ in form from the rest, the tips of the wings in 

 the females being rounded, or acute. 



Some females have the upper wings nearly as blue as in the 

 male, with a black spot, while in others they are nearly entirely 

 blackish brown. 



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

 species by the name of 'Polyomniatus 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 'Polyomniatus Thcstylis' 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 'Polyomniatus Lacon,' also of Miss 

 Jermyn, "in which the disc of the wings beneath is only marked 

 with a triangular 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." 



