FIG. 315. The cotton bollvvorm, or corn-ear worm (Ifeliothis obsoletd]. 



(Natural size) 



a, adult moth ; b, dark full-grown lar\-a ; c; light full-grown larva ; </, pupa. (After Howard, 



United States Department of Agriculture) 



1 



e 



f 



FIG. 316. The cotton-boll cutworm (Prodenia ornithogalli Guen.). (Enlarged) 



a, dark form of male moth ; b, pale form of female moth ; c, pale form of larva : </, dark 



form of same ; c, lateral view of abdominal segments of dark form ; /, of pale form. (After 



Chittenden, United States Department of Agriculture) 



2OI 



