THE CANADIAN ENTOMOLOGIST. 151 



A. juglandiella. N. sp. 



Except that it is perhaps a trifle smaller, I can not distinguish this- 

 species in the imago from A. spkndorifa-ella. Nevertheless, I consider it 

 a distinct species. The pupa case is oblong oval, much narrower in 

 proportion to its length, and smaller in every way than that of A. splen- 

 dorifcrciia, besides being more pointed at the end by which it is attached. 

 Besides, although spkndoriferei/a is much the most common species (at 

 least looo mines of sple7idorife7-£Ua being found to a single one oi j'uglan- 

 die/Ia), yet I have never met with a mine of the former earlier than the 

 latter part of July, whilst the mines of the latter are as abnndant, or 

 nearly so, in the latter part of May as at any time. The first mines of 

 juglandiella that I discovered were in the leaves of a small Walnut tree, 

 which stands under a large Wild Cherry tree. It was early in June. I 

 found several mines, but they were not by any means abundant. Not a 

 mine could I find on the Wild Cherry, either at that time or for two 

 months afterwards. 'juglandiella continued to mine the leaves of the 

 AValnut throughout the season, but never became abundant. But from 

 the latter part of July, on through the season, the mines of splendor if erclla 

 were abundant, not only in the leaves of that particular Wild Cherry tree, 

 but in those of all the species mined by it, and by October the leaves 

 were riddled with the holes left by cutting out the cases. The pupa case 

 of *sple7idoriferella is much larger than that of juglandiella, though there is 

 no appreciable difference in the size of the insects. The former is dark yel- 

 lowish, while the latter is brown. I have taken the latter species mining 

 Walnut leaves at a great distance from any Wild Cherry trees, as well as 

 close to them. (See also the remarks under A. splendor if erella.) 



A. saliciella. N. sp. 



Silvery. Antennce faintly tinged with fuscous. There is a triangular 

 white costal spot before the cilias, and an opposite dorsal one, each dark 

 margined before and behind ; the space between these two streaks and behind 

 them to the apical spot is silvery. There is a golden yellow patch on the 

 end of the disc immediately before the space, between the two streaks 

 above mentioned (the costal and dorsal white streaks). Another golden 

 yellow patch behind the costal streak, on the margin, Avith a very indistinct 

 and small black costal streak in it ; another golden yellow patch on the 

 dorsal margm, behind the dorsal streak, and behind it is a blackish patch 

 covering the base of the dorsal cilia. Apical spot black, and adjoining it 



