208 THE CANADIAN ENTOMOLOGIST. 



Palpi silvery white ; the second joint of the labial pair has a narrow 

 brown line extending along its outer surface ; face white ; vertex rufous ; 

 antennae pale fuscous. Thorax golden brown above and with a golden 

 brown streak or spot beneath the fore wings, which are golden tinged with 

 brown, and the costal and dorsal margins are brown ; before the middle 

 are two large tufts of raised scales opposite to each other, the inner one 

 brown and the outer one whitish or silvery gray, margined all around with 

 brown, and there are two similar tufts in the apical part of the wing. There 

 are seven small silvery white costal streaks, one before the first pair of 

 tufts and another just behind it, and both pointing obliquely backwards. 

 The third is smaller and placed just before the last two tufts, and is nearly 

 perpendicular to the margin, and the other four are in the apical part of 

 the wing ; there are also seven small dorsal silvery white streaks nearly 

 opposite the costal ones, the third dorsal one (from the apex) connected 

 faintly with its opposite costal one. Cilice pale fulvous. AL ex. a little 

 over ^ inch. Kentucky. 



t 



XYLESTHIA. 



X. Clsviensella Cham. 



The larva of this species bores in dead locust timber. It may be 

 found abundantly emerging (as imago) from locust fence posts, about the 

 middle of June, and is not uncommon as late as the first of August. 



SEMELE. 



S. cristatella Cham. 



I find that I have occasionally referred to this species as -.S". bifasciella, 

 by which name some of my specimens were labeled before it was pub- 

 lished as S. cristatella. Probably there is not sufticient reason for separating 

 it generically from the species placed by me in the genus Pitys. I am not 

 sure but that two related species are confounded under this specific name, 

 as in some of the species the wings seem a little narrower than in others, 

 and, besides, have a golden spot or longitudinal streak within the costa 

 near the base, and the tufts in the apical part of the wing margined with 

 sordid white or yellow. 



