104 THE BOOK OF BRITISH BUTTERFLIES. 



thirteenth. The coloration, which is very elaborate, is 

 thus described by J. Hellins : " The ground-colour is black 

 dotted with red, the head black ; the second segment has 

 a fine red dorsal line ; segments three to six have each 

 a transverse red patch on the back, and the subdivisions 

 lined in red, and their dorsal and subdorsal spines red ; 

 then comes on segments seven to eleven a broad dorsal 

 band of white, with a dusky blackish dorsal line, and 

 some short black streaks ; here the dorsal and subdorsal 

 spines are white ; on twelve this white band ends in a 

 wedge shape ; thirteen is black, but its spines are white ; 

 the lateral row of spines all red, the subspiracular row 

 pink ; the spiracular region is marked with an upper and 

 lower waved red line, with a red slanting streak behind 

 each spiracle connecting the two; the spiracles are con- 

 spicuous, being black ringed with white ; the belly 

 blackish with some red-brown marks ; legs blackish." 

 The head bears two short horns. 



The pupa (Fig. 100) is about fin. long, and has 

 two ears to the head. There is a prominent 

 projection on the thorax, succeeded by a hollow, after 

 which the contour follows a convex arch to the anal 

 extremity. Each side has a subdorsal row of nine small 

 points with reddish tips, and the wing-cases are pro- 

 minent. The colour is purplish-brown, with a greyish 

 line down the back of the abdomen, which also bears six 

 V-shaped marks. There are six silver spots behind the 

 thorax and a brown stripe along the spiracles ; the under- 

 surface of the abdomen bears some dark marks. 



The costal margin of the fore-wings of the imago 

 (Fig. 99) is nearly straight, and the hind-margin of all the 

 wings very jagged. The inner margin of the fore-wings 

 has a deep hollow. The colour of the upper surface is 

 brownish-orange, with a broad band of redder brown 



