THE INSECT WORLD. 



= 43 



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

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



Fig. 253. 



Milk-weed butterfly, Danais arcliippus,a.nA its transformations.— .-J, 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. 



