44 THE CANADIAN ENTOMOLOGIST. 



Eucostna Morrisoni^ Wlsm. — Two specimens, Macleod, VII , 8, and 

 Lethbridge, VII., ii. A trifle smaller and paler than Colorado and 

 Montana specimens. 



Eucosma circulana, Hbn. — One specimen, Regina, VL, i8. Same 

 size, but differs somewhat from Eastern specimens, and additional 

 material may prove it to be a new species, or at least a good variety. 



Eucosfna argentialbana, Wlsm. — Two specimens, Regina, VI , i8. 

 I have no authentic specimens from Texas, where the types were taken, 

 to make a comparison, but feel reasonably sure of this identification, 

 although the Regina examples are more distinctly marked and capable of 

 a much more clearly defined description than that of the type. 



Eucosma adminana^ Wlsm. — Two specimens. Regina, VIII. , 13 and 

 15. This is a very interesting capture, described by Walsingham, 1879, 

 from Califhrnia. It has not since been recorded or, as far as I know, 

 taken. 



Eucosma illotana, Wslm. — One specimen, Regina, VI. , 18. This is 

 also an interesting record, as I am not aware of any printed record of its 

 capture since Walsingham took it in Oregon more than twenty-five years 

 ago. It is not, however, the most Eastern specimen, as I have one from 

 Chicago, taken by Mr. J. H. Reading. 



Eucosma Stnithtana, Wlsm. — Two specimens, Macleod, VI. , 25, and 

 VII., 8. I am rather doubtful of this determination, the specimens are 

 somewhat rubbed, 'but as far as can be seen agree with the description. 

 If not Smithiaua, I do not know of anywhere else to place them, and 

 additional material may prove it to be new. 



Thiodia dorsiatomana, sp. nov. — Palpi inwardly and basally white, 

 outwardly and second joint above tinged with fuscous ; head and patagia 

 pale brown or fawn ; thorax grayish-brown. 



Front wing : Shades of pale olivaceous-brown or fawn, with a v/hite 

 divided median stripe, ocelUc spot, sub-apical cosia markings, and inner 

 two-fifths of costa narrowly edged with white. 



The brown shades are palest along the dorsum, below cell ; between 

 median streak and costa ; above ocellic spot and in a narrow sub-marginal 

 area. The white median streak extends from base to end of cell and is 

 evenly divided its whole length by a narrow black line, a heavier black 



