114 Kl'TlKRl'I.Y COM.F.CTOIl'S 



( 'atti'piUitr. 



POLYOMMATUS ADONIS, CLIFDEN BLUE. 

 Lcwin, pi. 38. /. 1,2, 3. Duncan, pi. 33, fig. 1, 2. 



Butterfly. Somewliat smaller than P. Corydon ; wings of 

 tlie male above, of a most beautifiil azure or .shining .silvery 

 blue, changing as tlie scite varies to lilac, at the posterior 

 margin edged with black. Female above, brown with a 

 black dot on a blueish di.sk ; secondary wings with tawny 

 and black spots, at the posterior margin underneath greyish ; 

 in the male rather cinereous ; both sexes in other respects 

 as in 1'. Corydon, but with the spots more distinctly ocellated 

 and the discoidal white spot is smaller, merely a transverse 

 streak. Fringe on both sides, white barred with brown. 



Caterpillar. Green, with dorsal rows of tavray spots. 



Chrysalis. Green, or bro\vn. 



Observation. P. Adonis, being by far tl>e most lovely of 

 the British Blues, is much sought after by our inferior col- 

 lectors, who make annual and distant pedestrian excusions 

 for the sole purpose of procuring its charming males, to 

 decorate their pictures with ; a picture consisting of nume- 

 rous and lieantiful Lepidoptcra, ornamentally and regularly 

 disposed, being the ultimate object of these assiduous people ' 

 in the science of Entomology. These pictures are of various 

 shapes and sizes. I have seen some which liave contained 

 500 specimens.' 



