202 [January 



From four females taken by Mr. Ridings at Burlington, Boulder Co., 

 Colorado Territory. 



Hesperia Napa, nov. sp. (Plate I, fig. Ill % , IV 9 .) 



Male. Expands 1A inch. Upper side bright fulvous; primaries 



with a broad blackish margin, dentated within and excavated opposite 



the cell ; from this sinus a large blackish spot extends to the stigma. 



which is long, narrow, oblique and velvety black ; a few black scales 



at base and in costa above the stigma. 

 Secondaries have the disk fulvous. 

 Under side of both wings fulvous inclining to yellow; no marks 



upon secondaries; primaries have black patches at inner angle and at 



base, connected with this last is a black stripe corresponding to the 



stigma. 



Body brown above, yellow below ; thorax and palpi greyish yellow ; 



club fulvous below, tipped with brown. 



Female. 1 T 4 inch. Similar to the male ; the stigma replaced by a 

 broad blackish spot; on the under side primaries have three small 

 spots on the costa and two on the sinus of hind margin, and seconda- 

 ries have a discal band, all of a more yellowish hue than the rest of 

 the wing. 



Taken by Mr. Ridings at Empire City, Colorado Territory. 



Hespehia maoulata, nov. sp. (Plate I, fig. VI.) 



Female. Expands lf G inch. Upper side uniform dark brown ; pri- 

 maries have three small round spots in a line from the costa, two of 

 larger size on the disk and a third below these on the submedian. 



Secondaries have one minute spot in the disk ; all these spots are 

 semi-transparent, yellowish. 



Under side nearly same shade as above; inner margin of primaries 

 washed with yellowish; spots as above; secondaries have two small 

 spots in the disk, separated only by the nervule, and a larger spot mid- 

 way between these and the costa. 



Body black ; palpi yellowish. 



Taken at New Orleans by Mr. Norton. 



Hesperia viator, nov. sp. (Plate I, fig. V.) 



Male. Expands 1 T 5 inch. Upper side of primaries brown with a 

 reddish tint ; a double yellow spot in the cell, and a row of spots across 

 the wing, of which the two on the costa are minute, the third is exte- 

 rior to the line and almost obsolete; the fourth small, oval; the fifth 

 three times as large as the fourth and rectangular ; the sixth and sev- 

 enth connected, triangular. 



