110 Tineina of the Central United States. 



The larva mines the upper surface of the leaves of Quercus nigra 

 and Quercus obtmiloba. The mine is at the edge of the leaf, which is 

 curled upward, over it. 



Possibly this may be T. citripenella, Clem., but I can not at all re- 

 concile his description of that species Avith the markings of this. His 

 account of the mine agrees better with this, but he does not say what 

 species of oak he found it on, nor does he mention the conspicuous 

 broAvn spot on the under surface of the fore wings, though he mentions 

 something like it on the hinder pair. 



T. fuscomarginella (n. sp.) 



Golden yellow ; the fore wings more reddish, and becoming deeper 

 toward the apex, where the margins, especially the costal margin, is 

 deeply suffused with purplish fuscous, which in some lights is distinctly 

 purple. Ciliae reddish yellow, tinged with fuscous along the costa. 

 Al. ex., one fourth inch, Kentucky. The fuscous margins of the 

 fore wing and the character of its mine distinguish it from other 

 known species. 



The larva mines the leaves of white oaks (Quercus alba) on the 

 nnder surface, at the edge, the leaf being curled downward, around the 

 mine. 



T. zetleriella (f)— Clem. 



Dr. Clemens does not say what species of oak is the food plant of 

 this species, and his description is not definite enough for a species of a 

 group, the species of which resemble each other as closely as do our 

 oak-feeding Thclieriw, I am therefore not certain that my specimens 

 belong to this species. My supposed zellcriella were bred from mines 

 on the upper surface of Quercus obtudloba. 



T. purinoseUa (n. sp.) 



White, almost hoary, with a faint tinge of creamy yellow ; antennae 

 yellowish ; vertex dusted with fuscous ; thorax and discal portion of 

 the fore wing sparsely dusted with fuscous ; basal half of the costal 

 margin and apex of fore wings densely dusted with fuscous ; cilise pale 

 fulvous; anterior surfaces of first two pairs of legs dusted. Al. ex., 

 one fourth inch, Kentucky. 



The larva mines the leaves of the white oak {Quei'cus alba). 



