yond them and the same number upon the cilia, which is white : inferior 

 wings bluish at the base, with an ovate black spot ocellated with white 

 on the disc, surrounded by 12 others, 9 parallel to the margin, with the 

 same number beyond them and 8 on the cilia alternating with them. This 

 species varies considerably in the breadth of the margin and the size of 

 the spots, which are sometimes absent. 



Beginning and middle of July, chalky downs, Dover Cliffs, and 

 near Deal ; Marlborough Downs, Wilts ; hills near Bath, and Clif- 

 den, Bucks ? and Mr. Dale took one near Bedford, and another at 

 Monk's Wood last year, where several were captured; and Mr. 

 Griesbach told me it was very abundant near Winchester many 

 years since. 



1 1 . Acis IVien. Fer.— Wood, f. 63 S ?— Argiolus Fab. —Hub. pi. 56. f. 269—27 1 . 



— Cymon Lewin. 



15 to 17 lines. Male lilac blue freckled with black, nervures and margin 

 of wings blackish, ciiia white, black at the base : unchrside, wings cine- 

 reous blue at the base, superior with a transverse black spot, ocellated 

 with white on the disc and a curved line of 5 or 7 ocellated spots beyond 

 it ; inferior wings with an obscure lunulate mark on the disc, an ocellated 

 black spot near the base, and 8 forming an irregular line beyond the middle; 

 cilia entirely white. Female deep brown, thorax and base of wings bluish. 



Chalky places, from the end of May to the end of July, in York- 

 shire, Leicestershire, Cambridgeshire, Norfolk ; Coleshill, War- 

 wick ; Windlesham Heath, Surrey ; Amesbury and Brockenhurst, 

 Hants ; and Glanville's Wootton, Dorset. 



12. Alsus Fab.— Don. 9. 322. 1. — Wood, f. 62.— minimus Esp. 



11 to 13 lines. Male grayish black, wings towards the base freckled with 

 silvery blue, cilia margined with white ; underside gray, superior wings 

 ■with a long black spot margined with white on the disc, and a curved line 

 of 7 black ocellated spots beyond it : inferior wings with 1 or 2 ocellated 

 black spots near the base, a transverse one on the disc, and 7, 8 or 9 be- 

 yond it forming an irregular line, and sometimes one on the margin. Fe- 

 male entirely pale black above. 



The smallest of our British Butterflies. It is found the end of 

 May and beginning of July in meadows, fields and woody places 

 in Norfolk, Suffolk and Herts ; Birch, Darentand Coomb Woods, 

 near Andover ; on the undercliff of the Isle of Wight ; and at 

 Dartmouth. 



13. Argiolus Linn. — Bon. 14. 481. — Wood,/. 6l(?. — Acis Fab. — Hiib. 



16 lines. Male silky bluish lilac, with a black line round the margin of 

 the wings, gradually thickening at the tip of the anterior ; cilia white and 

 spotted with black in the superior wings, nearly entirely black at the apex : 

 underside delicate pale blue, superior wings with a long transverse black 

 mark on the disc pale at the edges, 5 ovate black subocellated spots in a 

 transverse line beyond it, and a few paler spots along the margin, costa 

 and cilia spotted with black : inferior wings with 2 ocellated black spots 

 near the base, a long faint one on the disc, with 8 or 9 forming a very 

 irregular line beyond it and 2 or 3 at the anal angle. Female deeper blue, 

 superior wings with a dot on the disc, a large portion of the costa beyond 

 it, and the posterior margin black : inferior wings with the superior mar- 



9 



