PAPILIONID^. 



255 



The duration of the pupa stage was ten or eleven days." The 

 pupa, received from Mr. Saunders, has two large, conical tuber- 

 cles in front of the insertion of the antenna?, and two acute 

 tubercles on the pro- 

 thorax. The thorax is 

 acutel}^ bituberculated 

 on the sides, with an 

 acute thin dorsal ridge, 

 on each side of which 

 are two small, sharp 

 tubercles. Along the 

 back of the abdomen Fig. 184. 



are two rows of tubercles, those on the third abdominal ring 

 being much larger. It is half an inch long, and pale ash, 

 with black dots and irregular lines. 



Melitcea differs in not having silver spots beneath, while the 



caterpillars are covered with 

 blunt tubercles which give rise 

 to short stiff bristles. They 

 feed on different species of 

 plantain. The chrj'salids are 

 like those of Argynnis, but spotted Avith black or brown, and 

 not with golden. 



MelitKa Phaeton Drury (Fig. 184) is found in damp bogs. 

 We have taken the 3'oung larA^a less than one-half of an inch 

 long, early in spring under leaves, where it had 

 doubtless hibernated. The mature larva (Fig. 

 185, enlarged, the specimen from which the 

 drawing was made, is too contracted, the head 

 being drawn in unnaturally ; fig. 186, pupa) is 

 cylindrical, and the head is slightly angulated. 

 There are nine rows of black spines Avhich are 

 fleshy and surrounded at the tips with rather 

 long, thickset spinules. The head and thoracic \ 

 and last three abdominal rings are black ; the rest ^'^- ^^- 

 of the body being deep orange, with black lines between the 

 spines, and dots along the side. Towards the last of Ma}^ and 

 early in June it changes to a chrysalis, Avhich is white Avith a 

 slight bluish tinge, with yellow papillae, and scattered black 



Fig. 185. 



