GRAPTA II. 
aries, a narrow broken stripe of light green, edged on the anterior side by 
black ; the usual extra-discal row of points distinct on primaries; the silver 
mark an arc of a circle, thickened at the upper end, sharply barbed at the 
lower. 
Body above fulvous, beneath vinous-gray ; legs buff; palpi buff below, fulvous 
above and at tip; antenna? fuscous above, ochraceous below; club black, tip 
fulvous. 
Female. — Same size. 
1 1 imaiies less incised; tail short, narrow; the dentations less prominent; 
upper side as in the male, the yellow lunules obsolete ; under side less varie¬ 
gated, the colois being brown in shades, and without white except alonii’ costal 
edge of primaries near apex; both wings densely streaked as in the male; the ex¬ 
tra-discal points distinct, the green stripe indistinct on primaries, obsolete on sec¬ 
ondaries ; silver marks shaped as in the male, but larger, more delicate, pointed 
at the upper extremity, thickened, not barbed below. 
This little species is only known at present by the pair delineated on the Plate. 
They were taken some years ago by the late M. Lorquin, and assigned to Mr. 
Reakirt, with no other locality than “ Rocky Mountains.” 
Mr. Scudder (Syn. List, 1875), surmises that Marsyas may be dimorphic with 
Satyrus. The two are different in size, in the ornamentation of both sides, and 
in the shape of the silver spots; and this holds in both sexes, as may readily be 
seen by comparing the figures of Satyrus (Vol. I., Plate 40) with the figures now 
gi\en of Marsyas. Satyrus is not an uncommon species over large sections of 
the continent. It is found throughout the Rocky Mountains, and to Vancouver’s 
Island. To the eastward its range is at least as far as Ontario, Mr. T. L. Mead 
having taken two examples a few miles north of Port Hope, in 1874. It should 
be borne in mind when estimating the probabilities of dimorphism, that in the 
only species of Grapta in which this relation is established, viz., Interrogation^ 
and Comma , both the dimorphic forms are found wherever one is found, and 
they agree in size, in the markings of the upper side, and in the form of the 
silver spots.. In Comma there is an agreement also in shape. The differences 
in both species are found in the coloration of the two sides and in the mark¬ 
ings of the under side only; and in Interrogationis there is a slight difference in 
shape, the primaries of one form being more decidedly falcated. If Marsyas, 
then, is really dimorphic with Satyrus , there should at least be some points of 
agreement, and the presumption is fair that it would fly with Satyrus, and in¬ 
habit the same localities. 
