HESPERID^. 287 



developed ; proboscis extended at full length down the abdo- 

 men, from which its extremity is wholly free. Pale delicate 

 yellowish green, with all the lines as in the lai'va faintly 

 visible ; four days before the emergence of the perfect insect 

 there is a gradual suffusion of pink over the thorax, which, 

 with the wing-covers becomes in twenty-four hours of a 

 dingy greyish purple, the back of the abdomen light brownish 

 olive, the divisions appearing as paler rings ; beak and 

 tail puqjlish grey. The colour intensifies to deeper olive on 

 the back of the abdomen, with a dingy jDurple dorsal stripe ; 

 body and thorax to purplish black, while the frontal pro- 

 jection and the tail fade to a semi-transparent ashy grey; 

 finally the surface becomes as though covered with a misty 

 reddish grey bloom. Within the cocoon or chamber, already 

 described, the pupa is attached to the carpet of white silk 

 by a cincture of the same material, and by its anal hooks. 

 (Buckler.) 



June, July. 



i'irst discovered in this country by the late Mr. J. C. Dale, 

 at Lulvyorth Cove, Dorset, in August 1832. It was after- 

 wards taken more to the west at Durdle Cove, and also on 

 the east, at the Burning Cliff, near Weymouth. Mr. S. 

 Stevens took it there on the flowers of thistle and ragwort, 

 but more commonly on the heads of a Carex which grew in 

 clusters close to the beach. Mr. J. W. Douglas says of the 

 same place " the spot, close to the sea, is a kind of underclifE 

 not very level, of no great extent, and covered with thistles 

 and large tufts of a long coarse grass, or Carex, about which 

 the butterflies were skijjping briskly. So abundant were 

 they that I often had five or six in my net at one stroke." 

 Another observer noticed that they flew only when the sun 

 was hot, when it became obscured they dropped down among 

 the grass, or settled on low branches of furze, from which 

 they could not be extricated. When on the wing they 

 looked very small. Mr. H. Goss found it in another spot in 

 the same neighbourhood, " on rough broken ground on the 



