behind. It is green, with yellow lines on the back and sides, and with yellow 

 transverse lines spotted with red. It feeds on almond, sloe, plum, apple, 

 pear, and oak. 



The chrysalis is shorter than that of Machaon, and stouter in proportion, 

 more decidedly bifid at the head, and more pointed at the tail. In colour it 

 is ochreous, with darker streaks. 



It is a common butterfly in Southern and Central Europe, North Africa, 

 and West Asia, as Persia and Altai; and is met with in open places near 

 woods, especially in hilly districts, in May and July. 



It is said to have formerly inhabited England, but is now extinct. 

 (" Kirby's European Butterflies and Moths.") 



Described by Mouffet in 1634. 



In 1710, the " Historia Insectorum," by John Eay, was published in 

 London by Dr. Derham, and in it he writes of Fodalirius, " Prope Liburnum 

 Portum in Etruia invenimus, atque, ni male memini, etiam in Anglia." 



In 1795, Dr. Berkenhout writes, " Eare, in woods." 



In 1803, Haworth in his " Lepidoptera Britanuica " writes, "My friend, 

 the Eev. Dr. Abbott, of Bedford, has informed me that he took in May last, 

 near Clapham Park \Yood, in Bedfordshire, a specimen of Papilio podalirius is 

 the winged state. An ingenious and practical friend," probably Mr. Eippon 

 of York, " has informed me that he took two sorts of Swallow-tailed Papilios 

 near Beverley, in Yorkshire, five-and-twenty years ago, but no specimens of 

 them are now extant ; a fire which, unhappily, destroyed great part of his 

 property, having consumed them likewise." 



In 1822, the Rev. F. W. Hope captured one in Shropshire. 



In or about the yenr 1826, one was taken on the wing between Sough 

 and Datchet, Berkshire, by Mr. Eudston Eead, when a school-boy at Eton. 



Family PIERIDJE. 



GENUS II. APOEIA. 



Hubner. 



Aporia, a figure in rhetoric, when the orator doubts what to do or say. 

 Cic. Att. 7, 21. 



The antenna are rather long and thick ; and the wings, especially in the 

 female, are semi-transparent. 



APOEIA CEAT^EGI. 



Black-veined While. 



CIIAT^EGI, Linn. Cratse'gi, from the generic name of one of its food-plants 

 Cratagus oxyacantha (Hawthorn.) 



