GRAPTA VI. 
Female. — Same size. 
Similar in form and on upper side similar in color and markings ; beneath 
nearly uniform wood, or olivaceous brown, or vinous, with markings as in male, but 
indistinct and more or less obsolete; silver mark very slender and open, slightly 
barbed. 
Found in the Rocky Mountains, in Colorado, and in California and Oregon. 
I am indebted to It. H. Stretch, Esq., for the drawing of the larva, and the 
following description. 
Mature Larva. Head black, angular, bilobed, spiny and with a spiny tuber- 
cle at each of the upper angles; color of body black with a broad, greenish- white 
dorsal stripe, which on the anterior segments is clouded with black ; on each seg- 
ment, on this stripe, is a fine Y-shaped black mark having its angle at the dorsal 
spine; the spines form seven rows; the dorsal greenish-wliite, wanting on the first 
four segments ; the first lateral row of same color, present on all segments from the 
second; the second lateral row black, the third greenish- white, wanting on the 
first four and terminal segments, and springing from an infra-stigmatal line of 
same color; all the spines are thinly covered with short, bristling, concolored hairs, 
except that those near the tips of the white spines are blackish. 
Found on nettles, (Urtica) at Congress Springs, Santa Clara Co., California. 
Mr. Henry Edwards also writes, San Francisco, 26th March 1872. “The 
larva Ho. 4 on your plate is same as one I raised last year, which produced the 
male I now send you (Satyrus ) . I had two others exactly like it, but they died 
before coming to maturity. Their food was the stinging nettle and I could not get 
any of this plant in the city to keep them alive. I mention this to show that the 
coloring of the larva is constant, as if the same in four individuals, it is pretty good 
proof that the likeness extends throughout the species.” 
Satyrus forms one of the remarkable group, the several members of which re- 
semble one or other of the phases of C album, and to which I have referred in the 
notes to Comma. It as yet has nowhere been found common. Mr. Mead saw not 
more than half a dozen specimens in Colorado, where Zephyrus was abundant. I 
have also received it from the Island of San Juan, taken in company with G. 
Silenus. 
