SECTION IV., 1907. [199 ] Trans. R. S. C. 
XII.—On Some New Species of Geometride from Western Canada. 
By Gro. W. Taytor. 
(Read May 15, 1907.) 
In collections of Geometride recently received from the Provinces 
of British Columbia and Alberta, I find the following species that are 
apparently new to science. These probably represent but a tithe of the new 
species that will be discovered when the vast areas in these provinces that 
have never yet been visited by entomologists, are systematically explored. 
The first two species to be described would have been placed by 
Dr. Hulst in the genus Mesoleuca and belong to a group of Alpine 
species to which I believe the generic term Hntephria Hubner should be 
applied. 
We have long had on our lists the name of Æ. cæsiata Denis and 
Schiff. (Dyar’s list. number 3,373) ; but I doubt very much whether the 
true cesiata occurs in our fauna. 
I have lately compared a beautiful series of the so-called cæsiata 
taken at Ottawa by Mr. C. H. Young, with a considerable number of 
European specimens in my own collection, and I can see material and 
very constant differences. | Probably we shall be more correct if we 
apply the name aurata Packard to this form. There is also a western 
form very near to the last named but differing in its larger size, duller 
colour, smaller number of golden scales and in the coarseness of the cross 
lines on the forewings, especially the four extra basal lines. This form 
was described by Hulst as Philereme multivagata. 
Neither of these species, aurata or multivagata, are particularly 
closely related to the true cæsiata (though certainly congeneric), nor 
can they be confused with any other of the European species with which 
I have compared them, e.g., nobiliaria, Herr-Sch., cyanata Hubn., 
flavicinctata Hubn, infidaria Lah., glaciata Germ., and tophaceata Hubn. 
Entephria takuata, n. sp. 
This species is nearly allied to multivagata Hubn., but is larger; 
the colours are still duller and darker, with a faint bluish shade, and 
the golden scales are hardly perceptible. All the markings are suffused. 
The hind wings are very much darker than in our other native species, 
and takuata may at once be distinguished from the European cesiata by 
Sec. IV., 1907. 12. 
