286 Lloyd's natural history. 



[LI. P,., C] GENUS ACIIIVUS. 



Achmis^ Barbut, Genera Insectorum, p. 169 (17S1). 

 Priuceps, Hiibncr, Tentanicn, p. i (1810?). 

 Aiiuvyssus, Dabiian, CEf. K. Vet. Akad. Handl. Stockh. xxxvli. 

 pp. 60, 85 (1816). 



The type of this genus is regarded by most authors as the 

 type of Fapiilo, Linnaeus. It is a welbknown European and 

 Mediterranean insect, and is represented by various closely- 

 alhed forms as far as the Himakayas, and throughout Central 

 and Northern Asia, to Alaska and Cahfornia. A closely-allied 

 species, but darker, and with shorter tails {A. hospiton, Gene) 

 is confined to Corsica and Sardinia. The largest and hand- 

 somest of this cluster of imperfectly segregated species is the 

 Japanese A. hippocrates (Felder). 



THE swallow-tail. ACHIVUS MACHAON. 



{Plate LXVII. Fig. i.) 



Papilio machii07i, Linn. Syst. Nat. (ed. x.) i. p. 462, no. 27 



(1758); id. Faun. Suec. p. 267 (1761); Esper, Schmett. 



i. (i) p. 31, pi. I, fig. I (1777); Hiibner, Eur. Schmett. 



i. figs. 390, 391 (1803?); Godart, Enc. Meth. ix. p. 57, 



no. 89 (1819); Boisduval, Spec. Gen. Lepid. i. p. 328 



(1836); Stephens, Ilk Brit. Ent. Haust. i. p. 6 (1827); 



Newn.an, Brit. Butterflies, p. 150 (1881); Kirby, Eur. 



Butterflies and Moths, p. 2, pk 2, figs. 3, T^a-d (1878); 



Lang, Butterflies Eur. p. 7, pk i, fig. 4, pk 5, fig. 3 



(transf. 1881); Barrett, Butterflies of Brit. Isk p. 11, pi. 



I, i^-^ (1892) ; Buckler, Larvae of Brit. Lepid. i. p. i, pk 



I, fig. I (1886). 

 The Swallow-tail Butterfly, our only undoubted British repre- 

 sentative of the great Family of the EquitidtE^ measures from 

 three to five inches in expanse, and is our largest Butterfly, if 



