MONARCH BUTTERFLY 



245 



In the Eastern Mississippi Valley and Atlantic Coast 

 States it is perhaps less common than the related sulphur 

 butterfly, Colias jMlodke, which is so plentiful as adults 

 that it is fair to assume an abundant progeny feeding in 

 clover fields. 



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ii 



Fig. 188 Fig. 189 



Fig. 188. — The alfalfa caterpillar: egg — greatly enlarged. (After Wilder- 

 muth redrawn from Soudder, Bur. Ent., U. S. Dept. Ag., Fig. 4.) 



Fig. 189. — The alfalfa caterpillar (Eurymus eurijtheme) : larva or cater- 

 pillar stage — about twice natural size. (After Wildermuth, Bur. Ent., U. 

 S. Dept. Ag., Fig. 1.) 



Fig. 190. — -The alfalfa caterpillar (Eurymus euryiheme) : pupa or chrys- 

 alis stage — twice natural size. (After Wildermuth, Bur. Ent., U. S. Dept. 

 Ag., Fig. 5.) 



Monarch Butterfly (Anosia j^kxippns) . — The monarch but- 

 terfly (family Danaidce) is interesting in two or three ways, 

 though not of any special importance economically. It is 

 one of the largest butterflies outside of the Papilios, and it 



