PAPILIO I. 
the shade of the ground color. Those from elevated regions are undersized, and 
the bands are broader in proportion. At the same time the ground color is 
paler. It is this upland form that has been named Albanus. 
Eurymedon is found over the Pacific slope from Mexico to the borders of 
Aliaska. Also in Vancouver’s Island, and inland throughout all the Territories 
as far as Colorado, where it has crossed the “ divide ” and made itself a home in 
the valleys of the Platte and Arkansas. Mr. T. L. Mead, who collected in Colo¬ 
rado, in 1871, considers this a rare species in that State. He writes: “ A few 
Eurymedon were seen near Turkey Creek during the first week in June, re¬ 
sorting with Rutulus to the open woods and hill-sides where flowers were 
abundant.” 
Mr. Henry Edwards says of this species : “ It is especially common in all the 
canons of the Coast Range and in the valleys of the Sierra Nevada. In Cali¬ 
fornia it is double-brooded, the first appearing from February to April, and the 
second from August to the last of September. In the warm days of March, it 
may be seen flying quietly along the margins of the streams which flow from 
the mountains. It is rather a shy insect, but occasionally a cloud of them may 
be seen settled on the edge of a mud-pool, their wings erect and swayed about 
by the wind like a fleet of boats with their sails set. In this condition, it is 
easily approached and captured, but once alarmed, it makes a bold dash for the 
tops of the trees, and is soon out of danger. I am led to believe that this but¬ 
terfly is extremely rare east of this range of mountains.” 
Eurymedon in all respects, save in color, is wonderfully like Turnus. The 
shape is the same, and the arrangement of the bands and the form and disposition 
of the spots. The caterpillars are however distinct. The two species are part 
of a sub-group related to each other, as are the several species of Grapta that 
are allied to C. album. 
