74 



The form paulus Edw. described from Nevada (Morrison) 

 (probably east slope of Sierras) is found all through the Sierras from 

 Mt. Whitney southward and also in Oregon and Washington States; 

 the specimens marked type in the Edwards Collection are a $ and 9 

 labelled W. T. (Morrison), evidently those spoken of in Can. Ent. 

 XII, 54, and cannot be considered more than typical in any case. The 

 figure given by Oberthur (1. c. Fig. 2184) under the name of okius 

 is a typical $ of silvestris Edw. 



NYMPHALIDAE 



Argynnis nitocris Edw. 



This species was described from a single $ from the White Mts., 

 Arizona. We have a long series of both sexes from this locality taken 

 by Mr. R. D. Lusk; we also have a series of the so-called var. nigro- 

 caerulea Ckll. from the type locality, Beulah, Sapello Canon, N. M., 

 and can see absolutely no difference between the two series. In our 

 opinion nigrocaerulea should fall as a direct synonym of nitocris 

 which is figured by Holland, PL XIII, Fig. 4. Caerulescens Holl. is 

 easily distinguished by the dark basal area on both wings on the upper 

 side. 



A. nausicaa Edw. (PI. IX, Fig. 1). 



The species is listed by Dyar as a synonym of aphrodite but can 

 at once be distinguished, apart from wing shape, by the fact that the 

 veins of the primaries in the $ beyond the cell are distinctly and 

 broadly enlarged by black scaling whereas in aphrodite the scaling is 

 scarcely perceptibly present. The exact relationship of nausicaa is 

 doubtful to us; it shows certain affinities to halcyone and perhaps 

 might be better placed in this group. We figure a typical S and 

 comparison with our figure of the following species will readily show 

 our point in connection with the veins of the forewing. 



A. Columbia Hy. Edw. (PI. IX, Fig. 2). 



A careful examination of the type $ in the Hy. Edwards' Col- 

 lection forces us to the conclusion that Columbia is nothing but a small 

 northern form of aphrodite Fabr. Its relationship is clearly shown 

 by the fact that the veins on the primaries in the S sex are not at all 

 enlarged by black scales, at once separating it from atlantis with which 

 it has often been associated. This form seems to extend right across 



