Black-headed Fireworni. 



Fig. 1. Cranberry leaf with pile of castings over mine of newly hatched worm. 

 Much enlarged. 



Fig. 2. In middle, uninfested cranberry upright; at right, upright with the first web- 

 bing; at left, more advanced webbing. 



Fig. 3. Nest of webbed cranberry uprights. 



Fig. 4. Eggs on backs of cranberry leaves. Much enlarged. 



