GIPSY MOTH AND BROWN-TAIL MOTH. 



11 



fast as the trees are able to develop them. As the webs are made on 

 the terminals, the growth of the trees often is checked severely. In 

 heavy infestations trees may be stripped completely (figs, 5, 6), but 

 as the larvae become full-grown during the first part of June, the trees 

 usually have an opportunity to refoliate before midsummer. The 

 young larvae that hatch in August frequently skeletonize the leaves 



Fig. 4.— DifEerent stages of the brown-tail moth {Ewproclis chry.iorrhoea): Winter nest at upper left: male 

 and female adults, lower right; cocoon in leaves, upper right; male and female chrysalides above, male 

 at left; full-grown larva in center, somewhat reduced; young larva; at its left; egg mass removed from 

 leaf, showing single eggs, at lower left; female ovipositing on leaf; egg mass also on same leaf. 



