168 BRITISH BUTTERFLIES. 



regularity of disposition, the spots being nearly equal, arranged in a line bent at a 

 little less than a right angle, occasionally broken into spots, and sometimes with a 

 narrow black bordering to the spots upon the inner and outer side. In the c? of 

 P. manitoba the spots generally diminish in size toward the middle of the wing, 

 and, from the greater approximation to the outer border (shown by the spot in the 

 interspace beyond the cell), the band is bent at considerably less than a right 

 angle ; the spots are never bordered with black, at least in specimens I have seen. 

 The ? of P. comma agrees very well with the s of the same in its characteristics, 

 only the band is somewhat broader, .and, perhaps, more frequently made up of 

 detached spots, while the $ of P. Manitoba differs to a greater degree than its 

 male, the spots showing greater tendency to become equal in size, to separate from 

 each other, and even to become margined slightly with black ; it is, therefore, less 

 readily distinguished from this sex of P. comma than the males are. There is also 

 great variation in the breadth of the band or the size of the spots, for, while 

 usually larger than in the s (as in most species), they are sometimes many times 

 larger, and occasionally almost as small as in the most delicate-marked males. Of 

 the genital armature, the upper organ is bent at a right angle in the middle and 

 rounded, sulcated above, as in P. comma; the hook and lateral arms closely 

 resemble those of P. comma, but are slightly shorter, the hook only about one- 

 fourth the length of the centrum ; the clasps a very little more than twice as long as 

 broad, closely resembling those of P. comma, the posterior border is, however, 

 smoothly rounded and not so protuberant ; the teeth are of equal length, similarly 

 incurved, and very narrowly separated by a very deep rounded excision, the 

 lamina supporting the inner anterior edge of the tooth is very slight, having but 

 one or two dentations, and then disappearing. It is a widespread species, having 

 been taken in Colorado by Mr. Mead, about Pike's Peak (Edwards), on the shores 

 of Lake Winnipeg by the late Mr. Kennicott and myself, by the late Mr. Crotch 

 at Labache, and at Riviere du Loup by Mr. Couper. It occurs from the end of 

 July to mid-September. Reaches across N. America, following the southern border 

 of the Dominion of Canada from Quebec to Vancouver. More particularly a 

 western species, following down the coast ranges to central California: and the 

 Rocky Mountains as far as Colorado. Along the Pacific coast it has been found in 

 Calavaros Co., Cal. (Brehens) ; near Truckee, Nev. (MacGlashan) ; Fort Klamath, 

 Or. (Merrill) ; Washington Terr. (Edwards) ; Vancouver Isl. (Fletcher) ; Lake La 

 Hache (Crotch) ; Pike's Peak, Manitou, Col., Regina (Fletcher) ; east coast of Lake 

 Winnipeg (most northerly locality (Scudder) ; Nepigon, Sudbury (Fletcher) ; 

 Riviere du Loup, nearly opposite mouth of Saguenay river (Couper). From end of 

 July to mid-September (Scudder). 



After examining Scudder's types of Manitoba, Lyman notes (Can. 

 Ent., xxiv., p. 58) that one agreed exactly with var. laurentina, the others 

 (from British Columbia and Colorado) were greener but did not agree 

 with var. assiniboia, or approach the average of the Regina assiniboia, 

 but Scudder considered that, on account of the close similarity of tbeir 

 markings, the latter must be a form of manitoba : of which, indeed, 

 Smith showed the genital organs to be identical. He, however, further 

 states that Scudder's description of manitoba, " the underside of the 

 hindwings, except for the markings, almost uniformly greenish-yellow," 

 in the Butts, of New England, would appear to refer rather to assiniboia 

 than the less green specimens from British Columbia and Colorado. 



p. var. Colorado, Scudd., "Mem.Bost. Soc.Nat. Hist.,"ii.,p. 349(1874); Spey., 

 "Can. Ent.," xv., p. 143 (1883) ; Edw., " Can. Ent.," xv., p. 147 (1883) ; Dyar, 

 " List Nth. Amer. Lep.," p. 49 (1902). — Upon its upper surface this species differs 

 from P. Manitoba, with which it agrees in size, in scarcely any other particular 

 than the rather darker bordering in the £ s and the more conspicuous transverse 

 mesial band of the hindwings in the 9 s. Beneath, the ground colour varies from 

 olivaceous to griseous-green , the mesial belt of the hindwings is peculiar for the 

 manner in which it diminishes in width where it bends at the middle ; it is 

 apparently made up of three patches, a lozenge-shaped patch in the lower subcostal 

 interspace; a rather broad belt, nearly uniform in width, but irregular in outline, 

 crossing the median and part of the medio-submedian interspaces; and a similar 

 belt, but only half as wide, crossing the interspace beyond the cell, its outer limit 

 on a line with the outer limit of the previously mentioned belt, and its upper 

 interior angle reaching toward the tip of the lozenge-shaped patch ; these 



