THE INSECT WORLD. 



243 



come darker, finally brown or blackish, and then the butterfly 

 will emerge. This is not an injurious insect, and is only referred 



Fig. 253. 



D 



Milk-weed butterfly, Danais archippus , z.nd. its transformations.— ^, a, egg enlarged 

 thirty diameters ; b, very young larva, showing how the tentacles are folded ; c, egg, 

 natural size, on a leaf ; B, full-grown larva ; C, chrysalis ; D, male butterfly. 



to here because it is easily raised and common throughout the 

 country, — in fact, has spread all over the globe. 



