URBICOLA COMMA. 169 



spots are generally bordered narrowly with blackish. In the female, the spots are 

 generally larger, more frequently parted, less regularly disposed, and occasionally 

 accompanied by a spot in the upper subcostal interspace. The genital armature 

 has the upper organ rather small, strongly arched, sulcate above posteriorly, the 

 centrum, hook and lateral arms almost exactly as in P. manitoba. Clasps not large, 

 yet extending as far as the upper organ, fully twice as long as broad, tapering pretty 

 regularly, the posterior margin roundly angulated, the two teeth scarcely separated 

 by a very deep, equal rounded excision, the preapical slightly the larger and more 

 incurved, the apical followed within anteriorly by a rather stout but low lamina, 

 furnished with one or two small tubercular dentations opposite the preapical tooth. 

 This species has been taken in Colorado, about the Georgetown and South 

 Park Boads, by Mr. Mead, and in Arizona by Lieutenant Wheeler's expedition 

 (Scudder). 



There are three specimens in the British Museum collection under 

 this name : (1) A $ of particularly typical central European appear- 

 ance on the upperside ; the underside bright yellowish-green, with 

 small, well-marked, clearly outlined, rather united white spots, also 

 similar spots at apex of forewings. (2) A 2 dark in colour, fuscous- 

 brown, with rather pale yellow spots on upperside ; the underside 

 with the white spots larger, both on hindwings and at apex of fore- 

 wings. (3) A worn £ from Colorado. 



y. var. idaho, Edw., "Can. Ent.," xv., p. 148 (1883) ; Dyar, "List Nth. Amer. 

 Lep.," p. 50 (1902). — The upperside in both sexes, like the palest, or.most yellow- 

 fulvous, examples of Colorado. Underside yellow or grey-yellow (Colorado is 

 described by Scudder as from olivaceous to griseous-green) ; the spots white as in 

 Colorado. I consider it a variety of Colorado (Edwards). 



8. var. oregonia, Edw., "Can. Ent,," xv., p. 150 (1883); Dyar, " List North 

 Amer. Lep.," p. 49 (1902). — Besides the three forms of P. Colorado* is another as 

 distinct as any of them, which comes from California and Nevada. I have 2 <? s 

 and 2 ? s taken by Baron in north California, and 3 ? s by Morrison in Nevada. 

 Same size and shape as Colorado, bright yellow-fulvous on upperside, the subapical 

 spots of primaries placed as in the allied forms, but not so distinct nor well- 

 defined. On the underside the colour is greyish-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 specimens it is 

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

 with any of Scudder's, and is apparently constant (Edwards). 



e. var. nevada, Scudd., "Mem. Bost. Soc. Nat. Hist.," ii., 347 (1874) ; Spey., 

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

 " List Nth. Amer. Lep.," p. 50 (1902). — Judging from the specimens which have 

 fallen into my hands, this is the most abundant species in the w T est, and is one of 

 the most widely spread, having been taken in Colorado, California, Nevada, and 

 Oregon. Specimens from the latter region are a little paler upon the under surface 

 than those from more southern localities, and the same is true of the upper surface 

 of the $ s. The species is cf the size of P. comma, and the d s differ from those 

 of P. comma, and of all the other species of the genus (excepting the largei P. ottoe), 

 in the clearness of the upper surface of the wings ; occasionaUy, the wings are 

 somewhat suffused with dusky, but usually the hindwings have only a narrow 

 edging of blackish, broadened naturally along the costal border, and the forewings, 

 instead of having a distinctly limited bordering, as is common to a greater or less 

 extent in most species, have the wing gradually more and more suffused with a 

 warm but dusky tint tow T ards the tip, as is not unfrequently the case in P. comma; 

 sometimes the mesial belt of the under surface is visible above, but occasionally, 

 at least, it is wholly absent. The ? scarcely differs upon the upper surface 

 from the ? s of P. manitoba and P. comma, except in almost uniformly 

 having the small subapical spots, both those near the costal and those near 

 the outer border, paler than the others, or nearly white, as occasionally 

 happens in the ? of P. comma. Beneath, the mesial white band of the 

 hindwings is more irregular and scattered than in P. comma or P. mani- 

 toba, in the 3 it is usually broken up into four separate patches, connected 



* What Edwards means by this we cannot comprehend, possibly idaho, nevada 

 and manitoba, although he repeatedly asserts the distinctness of the two last-named. 



