I2«SECTS INJURING OAK-LEAVES. 



201 



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Fig. 62.— a, mine of Lithocolletis tubiferella.—BTi&glxSiin, del. 



260. Fitch's oak-leaf miner. 



Lithocolletis fitchella Clemens. 



Order Lepidoptera ; family Tineid^. 



This species forms a tent-like mine on the under surface of the leaves 

 of different species of oaks. It is a minute, nearly cylindrical, white 

 larva. The mine is visible on both sides of the leaf, while that of 

 L. hamadryadella is to be seen only on the upper side. The insect 

 hybernates in the pupa state within the leaves, so that the same general 

 remedy of gathering and burning the leaves will apply to this as to 

 the preceding leaf-miner. (Comstock.) 



This is a very common species on all kinds of oak at Washington, 



