106 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



moths emerge about the 1st of July. Dr. Clemens found some empty 

 mines and some larvae in August. 



The imago resembles that of quercvpulchella Cham., but is less re- 

 spleudeut and smaller, scarcely measuring two lines in alar expansion. 

 The occiput, eyecaps, aud palpi are silvery yellowish-white ; the head 

 brownish rusty-red; antennae fuscous; fore wings dark purple-brown, 

 nearly black, but strongly purplish, with the cilia paler, aud a pale 

 golden or rather yellowish-silvery fascia behind the middle, which has 

 its posterior margin straight aud its anterior slightly concave. The 

 first and second pairs of legs are silvery yellowish white, and the third 

 pair is of the same hue with the fore wings, with the basal joints paler, 

 aud of the same hue with the uuder surface of the abdomen. Kentucky. 



N. LATIFASCIELLA, n. sp. 



Face pale rusty-yellowish ; vertex dark brown ; palpi and basal joint 

 of antenna) (eyecap), thorax, a broad fascia about the middle of the 

 fore wings, aud the cilia silvery-white, tinged with pale yellowish (ex- 

 cept the cilia). The tuft is rather small, the antennae are pale grayish- 

 fuscons, tinged with silvery; the fascia is very broad, nearly straight 

 on its anterior and convex on its posterior margin ; the costal cilia are 

 fuscous; upper surface of abdomen fuscous, lower pale grayish -fuscous, 

 and the legs darker fuscous. Alar exjwnsion two lines. 



As will be evident on comparison of this description with that of 

 N. nigriverticella Cham, in Ciu. Quar. Jour. Sci. ii. 118, there are many 

 points of close resemblance between them, although they are very dis- 

 tinct species. It was taken resting on the trunks of Chestnut-trees 

 (Castanea americana), the leaves of which were full of empty Xepticula 

 mines, about the middle of August. Kentucky. 



N. BOSQUELLA, 71. sp. 



Palpi aud eyecaps white; antennae yellowish-fuscous; head deep 

 black ; thorax and fore wings pale creamy-white, dusted rather densely 

 with fuscous ; hind wings aud cilia of both pairs yellowish-silvery; abdo- 

 men brown on top; anal tuft yellowish-white; anterior and middle legs 

 brown on their anterior surfaces; hind legs and under surface of abdo- 

 men pale creamy-yellowish. Alar expansion four lines. Bosque Couuty, 

 Texas. 



