Tineina of the Central United States. 109 



depression, lined with silk, and precisely like that of many species of 

 LiUiocoUdh of the flat group ; at one side of this wlm is the little 

 circular aperture from which the frass is ejected, and from which the 

 imago ultimately makes its egress; then the mine is spread out from 

 the nicZzts, in every direction, except on the side of the aperture. It is 

 white, streaked with short, zigzag, purple lines, which are especially 

 abundant on ihenklm. When alarmed, the larva retreats into its nidm, 

 and in it it also passes the pupa state. It is altogether unlike any 

 other mine that I have seen. 



T. hadiiella (n. sp.) 



Very pale lemon (almost creamy) yellow, becoming slightly reddish 

 along the apical half of the costal margin and around the apex. Palpi 

 and antennffi of the general hue. A small spot of scattered brown scales 

 at the beginning of the dorsal cilia; a row of scattered brown scales 

 around the apex, at the base of the cilise, and a similar row along the 

 basal half of the dorsal margin. Al ex., one fourth inch, Kentucky. 

 The larva mines the upper surface of leaves of the ^yhite oak {Quercm 

 alba). The mine, while fresh, is white ; when dry, it becomes slightly 

 yellowish. It resembles the mine of T. malifoUella, being oblong and 

 of irregular outline, and when mature the upper cuticle becomes 

 corrugated. It is usually placed near the edge of the leaf, sometimes 

 at thredge, in which case, when it is mature, the edge of the leaf is 

 folded upward, over it. Possibly this may be T. zellerieUa, Clem., but it 

 is almost impossible to recognize any of these closely resembling species 

 in Dr. Clemens' brief description. I have another species (?), at least an 

 insect more deeplv colored, bred from mines in leaves of Q. obtusilobia, 

 which I suppose to be zdleneUa. Both mines resemble that described 

 by Clemens as that of zellerieUa, and they may both prove to be lighter 

 or darker shades of that species. 



T. qiiercivorella (n. sp.) 



Face, palpi and antenna very pale yellowish; vertex darker yellow ; 

 thorax and primaries pale lemon yellow, the primaries becoming 

 tinged with red at the apex, where they are sparsely dusted with paJe 

 brownish red; cilise of the general hue. Hind wings and cilia) palo 

 yellow or fulvous. The most striking colorational peculiarity abou 

 it is the large fuscous patch on the under side of the wings (both pairs, 

 at the base. Al. ex., nearly one third inch, Kentucky. 



