io8 LLOYD'S NATURAL HISTORY. 



success ; but still I do not regard it as by any means hope- 

 less. 



The Mazarine Blue expands about an inch and a quarter 

 across the wings. The male is dark purplish-blue, with a 

 moderately broad blackish border, and white fringes ; the 

 female is brown. The under side is of a dull ash-colour, 

 greenish at the base, with discoidal lunules (very narrow 

 on the hind-wings), and a single row of rather small black 

 eyes in white rings beyond. 



The larva is covered with fine yellowish-green hair; the 

 dorsal and lateral streaks darker. The head, feet, and stig- 

 mata are dark brown. It feeds on Anthyllis vulneraria from 

 July to September. 



N. cyllarus (Von Rottemburg) is an extremely pretty species 

 allied to N. semiargus, and it is not uncommon on the Conti- 

 nent, but is absent in the North-west. The male is of a bright 

 blue above ; and on the under side the eyes on the fore-wings 

 are much larger than those on the hind-wings, and the under 

 side of the hind-wings is of a beautiful green, from the base to 

 beyond the middle. 



I. THE LARGE BLUE. NOMIADES ARION. 

 (Plate XLVIL Figs. I, 2.) 



Papilio arion, Linn. Syst. Nat. (ed. x.) p. 483, no. 151 (1758), 

 id. Faun. Suec. p. 283 (1761); Esper, Schmett. i. p. 266, 

 pi. 20, fig. 2 (1777); i- (2) P- 53, pl- 59, ng. 2 (1780); 

 Hiibner, Eur. Schmett. i. figs. 254-256 (1803 ?). 



Polyommatus arion> Godart, Enc. Meth. ix. p. 698, no. 235 

 (1823) ; Stephens, 111. Brit. Ent. Haust. i. p. 87 (1828) ; 

 Kirby, Eur. Butterflies and Moths, p. 45 (1879); Bar- 

 rett, Lepid. Brit. Isl. i. p. 96, pl. 14, figs. 3, $a-c 

 (1892); Buckler, Larvae of Brit. Lepid. i. pp. 185, 188 

 (1886). 



