THE CANADIAN ENTOMOLOGIST. 283 



ment that bella is very likely the other sex of maculata, since my recent 

 studies in this genus have convinced me that this is hardly possible, owing 

 to the different habitus and entirely different colour of beila. 



Type Acad. Nat. Sciences, Phila. 



Type locality, Corvallis, Oregon. 



Corvallis, Or., 9th May, i8g8j 28th May, 1899 (Cordley); Hoquiani, 

 Wash., 29th May, 1904, flying (Burke), received through the courtesy of 

 Dr. A. D. Hopkins, Olympia, Wash.; Seattle, Wash., June 25th, 1897 

 (Kincaid) ; Glenora, B. C. (Wickham) ; Vancouver, received through the 

 courtesy of Mr. J. H. Lovell. 



Gnat/lias G^r^j//, Ckll.— Ann. & Mag., N. H., XII, 203, 1903, ?. 



Corvallis, Or., 7th May, 1898 (Cordley). 



Gnathias Grayi eastotiensis, Ckll. 



Easton, Wash. (K.), from U. S. N. M. 



Var. with two submarginal cells. Wash. (A. E. S., Phila.) 



Gnathias Washmgtoni, Ckll.— Acad. Nat. Sci., Phila., LV, p. 598, 



1903. ?• 



Wash. (Am. Ent. Soc, Phila.) 



Gnathias rhodomelas, Ckll. — Acad. Nat. Sci., Phila., LV, 598, 



1903, ^• 



Corvallis, Or., 20th May, 1899, 15th April, $ (Cordley;. 

 There is some doubt whether the $ placed here really belongs to 

 rhodomelas. 



Centrias, Robt. 

 Hind femora not arcuate ; base of abdomen not red; antennae with a pale 

 annulus ; hind femora with much black ; no supraclypeal 



mark scitiformis. 



Centrias scitiformis, Ckll. — Acad. Nat. Sci., Phila., LV, 591, 



1903. $ 



Corvallis, Or., 2nd-8th June (Cordley). 



Holonomada, Robt. 

 (Here belongs intercept a. See Nomada.) 

 First joint of the flagellum distinctly longer than the second ; only about 

 one-third of the pleura yellow. 



Tegument shining ; punctures nearly everywhere rather distinctly 



separated suavis. 



Tegument dullish ; punctures very close, rather rugulose. . .viftnula, 



