THE CANADIAN ENTOMOLOGIST. 121 



coloration and size of bolh are identical, and they can only be separated 

 by structural characters. The easiest to observe is the length of the palpi, 

 which in the Tortrix is hardly as long as the head, while in the Crambid 

 tiie palpi project forward between two and three times the length of the 

 head. 



Crambus pascuellus, Linn. — Two specimens; Lethbridge, VII., ir. 

 I hav-e no Eastern or European examples of this species, it compares 

 exactly witli a long series from Verdi, Nev., (Vachell), and South Utah, 

 (Poling). Fernald states that the larvae feed on grass, and iiabitat from 

 Massachusetts to California and Europe. 



Crambus trisectus, Walk. — Seven specimens ; Regina, VIII., 13. 

 Do not differ from a long series from Colorado (Nash), Manitoba ( Heath); 

 and other Western localities. Can be easily identified, as it is one of the 

 largest of the pale- or ashy-brown species without metallic ornamentation, 

 with two oblique darker brown lines parallel to outer margin, one about 

 middle of wing, the other between it and margin; these dark lines are 

 easily rubbed off, and while some specimens show only the costal half, in 

 others it is almost obliterated. Fernald's figure, in Crambidai of North 

 America, is as much unlike this species as it is possible to draw it. 



Thaumatopsis Fernaldella, sp. nov. — Head, palpi, thorax, abdomen, 

 egs, and front wing, light ochreous-brown, or pale fawn-colour. 



Front wing : A darker shade of brown along costa from base to 

 inner third. 



A median white streak from base to end of cell, beginning at base as 

 a line and widening on its lower edge until it involves the whole width of 

 cell at its outer end. The lower edge of this streak overlaid with a line of 

 dark brown scales and a shade of lighter brown above the dark line. 

 Above the white streak is a brown shade from inner third to apex, inter- 

 rupted at end of cell, a thin, very dark line between this shade and the 

 white. Beyond end of cell the white streak is outlined by a brown shade 

 forming an abbreviated transverse fascia. 



A narrow white sub-terminal fascia, overlaid with silvery-metallic 

 scales from dark shade to dor<^al margin, is bounded inwardly and out" 

 wardly by brown lines. Between end of cell and sub-terminal line, the 

 veins are white, vein vii. being most pronounced and the white line over 

 this vein is the one that interrupts and indents the brown shades above 

 median white streak. A short, oblicjue streak of brown on middle of 

 dorsal margin. On costa, before apex, a pale spot, and adjoining it 



April, 1405. 



