RED-STRIPED FIREWORM 

 Fig. 13. Mine of young warm covered with castings. 



Fig. 14. Cranberry leaves mined at base by newly hatched worms, with castings removed. 

 Fig. 15. Xest of webbed cranberry uprights. 

 Fig. 16. Cranberrj uprights with tubular cases made by worms in webbed nests. 



but many first mine the basal part of the blade of the old leaf between which 

 and the stem the egg was held, entering it from the upper surface and covering 

 the entrance with a mass of green castings (figs. 13 and 14). 



The webbing begins among the terminal leaves but is not very conspicuous 

 there. As the season advances it is extended farther and farther down the 

 shoot and often two or three uprights are sewed together (fig. 15). This 

 species webs its nests more closely than the other fireworms do, and forms in 

 them a characteristic irregular tubular case of silk covered with brown cast' 

 ings (fig. 16). The worms are parasitized considerably, but their nests are a 

 better protection than those of other fireworms and they keep much more con' 

 cealed in them. 



Description and Seasonal History 



Most of the worms leave their cases during late September and October and 

 go down into the trash and surface sand of the bog floor to remain dormant 



[15] 



