PEACH AND THE PEAR. 99 



earth and gum contiguo/.s to the base of the trees ; soon 

 they are transformed to Chrysalids and finally come 

 forth the full-winged moth, and lay eggs for another 

 generation of borers. This last transformation takes 

 place, Harris says, from J.une to October, in Massachu- 

 setts ; on the peninsula, as early as the latter part of May, 

 and as long as warm weather lasts, he thinks we have 

 them ; although there are several broods produced by a 

 succession of hatches, there is but one rotation of meta- 

 morphosis consummated within one year. Hence, borers 

 of all sizes will be found in the trees throughout the 

 year ; although it seems necessary that all of them, 

 whether more or less advanced, should pass through 

 one winter before they appear in the winged state. 

 The winged insect as we see it in the orchard is like a 

 wasp, in looks — at first sight. It is a four-winged, dark- 

 blue moth. The male is smaller than the female, has 

 all the wings transparent, but bordered and veined with 

 steel blue, which is the general color of the body in both 

 sexes. The feelers, the edges of the collar and shoulder 

 covers, the rings of the abdomen, and the brush on the 

 tail are pale yellow, and the shins have two rings of yel- 

 low color. It expands about one -inch. The female has the 

 fore-wings blue and opaque ; the hind wings transparent 

 and bordered and veined like those on the male, and the 

 middle of the abdomen is encircled by a broad orange- 

 colored belt. It, the female, expands an inch and a half, 



