Genus Grapta 



dark tints of the under side mottled with paler shades. Expanse, 

 2.00-2. 15 inches. 



The caterpillar feeds on willows. It is found from New England 

 to the Carolinas. and thence westward to the Pacific. 



(6) Grapta zephyrus, Edwards, Plate XX, Fig. 5, 6 ; Fig. 6, 

 3, under side (The Zephyr). 



Butterfly. — Fulvous, marked with yellowish toward the outer 

 margins, the dark markings upon which are not as heavy as in 

 the other species of the genus. On the under side the wings are 

 paler than is the case in other species, reddish-brown, marbled with 

 darker brown lines and frecklings. Expanse, 1.75-2.00 inches. 



The caterpillar, which feeds upon Azalea occidentals, is de- 

 scribed and figured by Edwards in "The Butterflies of North 

 America," vol. i. Zephyrus is found throughout the region of 

 the Rocky Mountains, from Colorado to California, and from 

 Oregon to New Mexico. 



(7) Grapta gracilis, Grote and Robinson, Plate XIX, Fig. 10, 

 6 ; Fig. 11, 9, under side (The Graceful Angle- wing). 



Butterfly. — A small species, rather heavily marked with dark 

 brown or blackish on the upper side. The wings on the under 

 side are very dark, crossed about the middle by a pale-gray or 

 white band shading off toward the outer margins. This light 

 band serves as a means of easily identifying the species. Ex- 

 panse, 1.75 inch. 



The early stages are unknown. 



The species has been found on the White Mountains in New 

 Hampshire, in Maine, Canada, and British America, as far west 

 as Alaska. 



(8) Grapta silenus, Edwards, Plate XIX, Fig. 5, $ ; Fig. 6, 

 9, under side (Silenus). 



Butterfly. — Larger than gracilis, and the wings more deeply 

 excised, as in /annus. On the under side the wings are very 

 dark, with lighter irrorations, especially on the fore wings. Ex- 

 panse, 2.00-2.30 inches. 



The early stages have never been studied. This species 

 appears to be found only in Oregon, Washington, and British 

 Columbia. 



(9) Grapta progne, Cramer, Plate XX, Fig. 3, 6 ; Fig. 4, 6 , 

 under side; Plate III, Fig. 31, larva; Plate IV, Figs. 32, 37, 38, 

 chrysalis (Progne). 



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