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, 
$ , 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, 
$ ; Fig. 11, ?, 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, 
$ , under side (Silenus). 
Butterfly. —Larger than gracilis , and the wings more deeply 
excised, as in faunus. 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, $ ; Fig. 4, 6 , 
under side; Plate III, Fig. 31, larva; Plate IV, Figs. 32, 37, 38, 
chrysalis (Progne). 
<66 
