The Canadian Horticulturist. 



261 



DANAIS ARCHIPPUS. 



/^OME subscriber sent us by mail the other day, in a small box, 

 /^^ the beautiful green, gold tinted chrysalis of this butterfly. During 

 transit, the warm weather had caused its exit from its cocoon, and it 

 was vainly endeavoring to expand its beautiful wings in its pasteboard prison. 

 Our engraving Fig. 60 is an excellent representative of this Archippus butter- 

 fly, which appears in the months of July, August and September, and is very 



P"iG. 62. — The ARCHrppus Buttkrflv. 



widely distributed. It is a great traveller, and we often read of its migrations, 

 in great swarms, either toward the north or the south. Mr. Bowells, of 

 Montreal, speaking of it in the Entomological Report, 1880, page 30, says 

 he has seen upon the shore of Lake Ontario, near Brighton, hundreds of 

 their dead bodies cast up by the waves, and which had no doubt formed 

 part of a swarm that, from weakness or some other cause, had perished 

 while flying across the lake. The larva of this butterfly is shown in Fig. 61. 

 It has a pair of projecting thread-like horns on the front and rear portions 



of its back, one on the 



cH\">>^.,,^ » ^^->^K>-v. — ^ ^y>^ second segment, and one 



on the eleventh, and the 

 body is banded with 

 yellow, black and white. 

 They feed upon the mil k 

 weed, Ascltpias, and their 



Fig. 63 —Larva of Danais Archippus. migrations are probably 



explained by the instinctive desire of the mother to deposit her eggs upon 

 this plant, where the young caterpillars may find abundant nourishment- 



