loO THE CANADIAN ENTOMOLOGIST. 



ent, as in the male, and not separated, as in the Comma; the spots are 

 clear and silvery white, not yellowish, as in the Comma. As before said, 

 the spot in cellule 7 is wanting, and there are no fringe spots to either sex. 

 Examining the other American forms as to the presence or absence of the 

 spot in cellule 7, I find that in Jitba all examples have it ; in Colorado, 

 Manitoba, Nevada and Idaho, most do not have it, but some of each sex 

 in each form do. It is often reduced to a mere point which is confluent 

 with the spot in cellule 6. It scarcely does more in this case than cross 

 the nervule, and does not merit ])eing called a spot. 



Considering the lack of this spot in Columbia, the peculiar shape of 

 the band of spots, the color of under surface, and the unspotted fringe, 

 and the differences in color and marking between the sexes, I must regard 

 this as a distinct species from Comma, as in fact, at a considerable dis- 

 tance from Comma, and it has differences from the other American forms 

 to entitle it to stand alone. Its peculiarities are important, and, so far as 

 appears, permanent. 



5. Besides the three forms of P. Colorado is another as distinct as any 

 of them, which comes from California and Nevada. I have 2 males and 

 2 females taken by Mr. Baron in north California, and 3 females by Mr. 

 Morrison in Nevada. Same size and shape as Colorado, bright yellow- 

 fulvous on upper side, the sub-apical spots of primaries placed as in the 

 allied forms, but not so distinct, not well defined. On the under side, the 

 color is grayish-yellow • the spots of both wings scarcely lighter than the 

 ground (not white, therefore, or even light) ; the band on secondaries 

 slight, and often macular ; in one of the Nevada examples it is altogether 

 wanting, except for a dot near outer angle. This form cannot be ranked 

 with any of Mr. Scudder's, and is apparently constant. I call it species 

 Oregonia. 



7. Dr. Boisduval described a species as Ruricola, which has hitherto 

 been unrecognized by American collectors, so far as I am aware. He 

 says : " Size of Liiieola, the wings a little more sinuous, almost 

 the same yellow, with a narrow brown border; the fore wings 

 having the stigma as pronounced as in Sylvanus, marked length- 

 wise by -a fine whitish line. Under side of the wings yellow, 

 with all the surface of secondaries and the apical area of i)rimaries 

 a little more green than in Sylvanus. Described after the male 

 ouly. Ann. Soc. Ent. de Fr., 2 Sen x. 316, 1852. I have found among 

 Mr. Baron's collections a single male of this species, agreeing in all respects 



