ON" SOME SPECIES OF NISONIADES. 335 



cording to notes made at the time of their examination, "larger than in any of the 

 If. Juvenalis in my collection, except in a single example taken at Center, in 

 which they are about the same in size and similar in form." 



NisoNiADES Propertius Scudd.-Burg. 



Several years ago, through the kindness of Mr. Scudder, I was permitted to 

 examine the species of the Nisoniades in his collection, including several of his 

 types. Among them were eight examples, bearing his label of Propertius, from 

 the following localities: two from Mokiah Pass, Palmer collection; one from 

 Sierra Nevada; four from California ; one from Juniper Mountains. 



The following notes upon this species were made by me at the time, upon 

 comparison of the material with the examples of N. Juvenalis in my own col- 

 lection. 



Size of N. Juvenalis ; the primaries more pointed ; the submarginal row of 

 sagittate and black spots is more oblique, being more drawn inwardly toward 

 the base as it approaches the internal margin, whence it follows that, while in 

 JuKenalis, of the two subelliptical whitish spots in cell 1 b, the lower one is as 

 near to the outer margin as that in cell 3, in this species it is always further re- 

 moved. The hyaline spot in the discal cell is smaller than in N. Juvenalis and is much 

 less conspicuous underneath. Of the four costo-apical hyaline spots, 1, 3 and 

 4 are in line, or 3 is somewhat nearer to the base of the wing; 2 is nearer the 

 apex and is elongated. The thorax and abdomen are fuscous, instead of umber- 

 brown. In general color it is darker, more approaching N. Persius — the black 

 spots not offering so strong a contrast with the ground as in N. Juvenalis; the 

 primaries are nearly covered with bluish hairs, which is perhaps the best char- 

 acteristic feature of the species. 



It is very doubtful if the genitalic form, N. Tihullus of Scudd.-Burg., can be 

 separated from N. Propertius. 



This species has also been received from Utah and Arizona. I have also in my 

 collection, examples received from Mr. Henry Edwards (No. 76), from Havilah, 

 California, and Vancouver Island. 



Nisoniades Icelus Lintn. 



Mr. "W. H. Edwards has allowed me to examine two examples of this species, 

 wliich he had obtained from the Western collections of Mr. Morrison in 1880, 

 taken in Washington Territory. This extreme western locality for this insect is 

 an interesting addition to our knowledge of its distribution. Mr. Scudder in his 

 Systematic Revision of American Butterflies (1873), gives as its distribution, 

 Canada to West Virginia; Atlantic Coast to Michigan. In the Edwards' Cata- 

 logue of the Biurnals of North Ameinca (1877), its habitat is given as New Eng- 

 land, Middle States and Illinois. Subsequently (my Entomohg. Contrib., No. 

 IV, 1878), I identified it among some Colorado collections of Mr. Morrison. 

 These western examples do not differ in size or in any particular feature from 

 our eastern forms. The examples before me are without date of collection. They 

 are in fresh condition, and are rather more strongly marked with white scales 

 toward the costal and outer margins of the primaries than those ordinarily met 

 with in the Middle and Eastern States. 



An interesting feature of this species, observed by Dr. Speyer, is noticed in his 

 valuable paper on the Genera of the HesjtsridcB of the European Faunal- Region 



