PAPILIONIDyE. — I'APH.K). 7 



round feri-uginous spot, which is nearly siirrovuitkMl with black, with a blue 

 lunule towards the base of the wing, and an elongated, triangular yellow 

 spot towards the tip : the tail is black, linear, and edged internally on each 

 side with yellow. The under surface of the wings much resembles the 

 upper, but is paler, and the lunules on the superior wings are converted to a 

 continuous yellowish band; the marginal fascia is also so strongly irrorated 

 with yellow as to appear entirely of that colour. The inferior wings have the 

 blue spots narrower, more lunulated and distinct, and the fasciic in which 

 they are placed is, like that of the superior wings, nearly yellow ; the four 

 lunular spots of the upper surface on the edge exterior to the tail are replaced 

 by others of a quadrate form : towards the centre of the wing are two or three, 

 more or less evidently defined, triangidar reddish spots, and one in the qua- 

 drate marginal spot near the anterior edge of the wing ; the nervures are much 

 more dilated than on the upper surface ; but the ocellated anal spot and tail 

 are nearly similar to those of the upper surface. The body is yellow, with 

 two lines beneath, and the back black : the antennsc are black : the legs black, 

 with yellow hairs. 



The lunules on the margin of the inferior wings are frequently marked with 

 red or fulvous ; and there is often one or more round black spots placed 

 between the dilated veins at the tip of the superior wings. 



The caterjiillar is smooth, green, with velvety black rings, alternately spotted 

 with ferruginous : the organ with which it is armed on the top of the neck 

 is of a red colour ; it secretes an acrid -liquor, which emits an unpleasant 

 smell, particularly when the animal is irritated, by which it keeps the ich- 

 neumons at a distance. It feeds solitarily on umbelliferous plants, especially 

 on the fennel and carrot, the flowers of which it prefers. About July it 

 changes to the chrysalis, which is greenish, with a longitudinal black band 

 on each side. 



P. Macliaon is not an uncommon English insect, especially in 

 the fenny counties of Huntingdon and Cambridge, in some parts 



and the fourth is sometimes partially divided by a pale dash. The posterior 

 wings are much dentated, and have a long tail : yellowish on both sides, with 

 two or three subparallel strigse, of which the first is broadest, and occupies 

 the inner or abdominal margin ; the next is sometimes united thereto, and 

 the last is placed in the middle : the margin on both sides is dusky, with 

 four bluish and two yellow lunules, and at the anal angle is a fulvous spot, 

 bearing a black patch and a bluish lunule : the wing beneath has four 

 strigie, with a reddish line between the second and third : the tail is black, 

 with its inner edge and tip yellow : the abdomen is yellowish, with the back 

 and a double row of spots beneath black ; the antenna; are black. 

 The larva is solitary, and feeds on the various kinds ofbrassica; it is of a bright 

 green, with a whitish dorsal line, and two others immediately above the legs, 

 and on eacli side are oblique whitish lines, which connnence from the second 

 segment, and are spotted with red : the head is roiiiid, deeply ininiersed in 



