LEPIDOPTERA NYMPHALtDAE GBAPTA SATYEUS. 767 



on the posterior half of wing, lilac on brown ground apically ; on the ante- 

 rior edge of the band, upon small ferruginous spaces free from lilac, is a 

 row of straw-colored points and spots, commencing in a point on the lower 

 subcostal interspace, and continuing to submedian nervure, just before 

 which are two points ; the three spots on the three median interspaces 

 crescent or V-shaped ; in some cases these larger spots re-appear on upper 

 side ; posterior to the band the subrnarginal area is brown, sharply lunated, 

 each lunation forming internally a semi-circle, and through all runs a streak 

 of ferruginous, more or less irrorated with yellow ; sometimes the streak is 

 limited to the three interspaces next abdominal margin. 



Body blackish-brown ; legs brown and gray ; palpi gray in front, 

 blackish above and at tip ; antenna? brown, grayish next club, gray below; 

 club yellowish. 



From White Mountains, Arizona, and taken by H. W. Henshaw in 

 1873. This species is near Patrobas, HeAvitson. Edwards, I. c. 



GRAPTA, Kirby. 

 GEAPTA SATYEUS, Edw. 

 Grapta Satyrus, EDW., Butterflies N. A., i. 



A single specimen, taken on the 24th of June, at Turkey Creek Junc- 

 tion, shows this species to be an inhabitant of Colorado, but it must be 

 extremely rare, as no others were seen during the season. This species 

 approaches more nearly the usual type of the European C. album than any 

 of the numerous other American species which have been confounded with 

 that very variable butterfly ; however, the discovery of the larva of Satyr us 

 has proved its distinctness beyond a doubt. Grapta C. album varies toward 

 all the forms which are represented by distinct species on this side of the 

 Atlantic, and, also, toward several besides, while our corresponding species 

 are all remarkably constant to their types, and a glance will show to which 

 species any specimen should be referred. It may help to explain these 

 facts to take into consideration the differences in the geological history of 

 the two continents. As the genus is confined to temperate climates, it is quite 

 possible that its archetype could not be produced or exist during a geologic 

 era when the earth was so heated as to maintain a torrid temperature over 

 its whole surface. At the close of this period, the climate of Central North 



