POLYOMMATUS. 99 



IV. THE CROWN ARGUS. POLYOMMATUS ALEXIS. 

 {PlafeXLVIlI. Figs, i, 2.) 



Papilio alexis, Scopoli, Ent. Carn. p. 179 (1763}; Von Rot- 



temburg, Naturforscher, vi. p. 22, no. 9 (1776). 

 Fapilio medon^ Hufnagel, Berl. Mag. ii. p. 78, no. 41 (1786); 



Von Rottemburg, /. c. no. 10 (1776); Espcr, Sclimett. i. 



(i) p. 330, pi. 32, fig. I (1779); i- (2) p. 29, pi. 55, 



fig. 7 (1780). 

 LyccBtia medon^ Newman, Brit. Butterflies, p. 121 (1881). 

 JFapilio agesiis, Denis & Schiffermiiller, Syst. Verz. Schmett. 



Wien, p. 184, no. 13 (1776) ; Hiibner, Eur. Schmett. i. figs. 



303-306 (1803 ?). 

 Polyommatus agesiis, Godart, Enc. Meth. ix. p. 689, no. 



220 (1823) ; Stephens, 111. Brit. Ent. Haust. i. p. 94 



(1827); Barrett, Lepid. Brit. Isl. i. p. 73, pi. 10, figs. 3, 



3^, b (1892); Buckler, Larvae of Brit. Lepid. i. p. 116, pi, 



16, fig. I (1886). 

 Fapilio astrarche, Bergstrasser, Nomenclator, iii. p. 4, pi. 49, 



figs. 7, 8(1779). 

 Polyommatus astrarche^ Kirby, Eur. Butterflies and Moths, p. 



50, pi. 14, fig. 9 (1879). 

 Lycce7ia astrarche, Lang, Butterflies Eur. p. 114, pi. 24, fig. 9 



(1882). 

 Var. Lyccena astrarche, v. cestiva, Stand. Cat. Lepid. Eur. 



ed. 2, p. II, no. 1556 (1871). 

 Var. Papilio allms, Hiibner, /. c. figs. 988-992 (1841 ?). 



The Brown Argus is common throughout the greater part of 

 Europe, the Mediterranean Region, and Northern and Western 

 Asia. The largest and brightest-coloured specimens come 

 from the Mediterranean Region, where the two broods pre- 

 sent constant differences in many localities. It is a local 

 insect in the south of England, where it is double-brooded, 



H 2 



