54 BUTTERFLIES OF MAINE. 
both wild and cultivated, and also on the leaves of elm, 
hibernating in the perfect state. 
The eggs are similar to those of G. interrogationis, and 
the mature larva is about one inch long, buff-colored, and 
armed with branching spines as in G. comma. Head, sub- 
cordate, with a large, compound, spinous process on each 
vertex, the main stem black, the branches black and yellow, 
the face and sides of the head thickly covered with simple, 
conical, yellowish spines of various sizes. The surface of 
the body varies greatly in color and markings. 
The pupa is .7 of an inch long, suspended by the tail ; the 
head-case, high, with a short, stout, conical projection at each 
vertex, the space between being rounded, the back with a 
thin prominence. There are several rows of tubercles on the 
abdomen, mostly small, some of which are gilded; colors, 
dull green, brown and pinkish white. 
The butterfly is on the wing in Orono, about the middle of 
Augtst, and hibernated specimens, early in the spring. 
24. GRapra J ALBUM, Bd-Lec. 
Grap’-ta j al’-bum. 
Expanse of wings, about three inches. 
Upper side of the wings, dull yellowish, washed more or 
ess with dull, rusty brown, which is darker and more dense 
on the base of the wings. The outer margin of the fore 
wings is black, with a double crenate line, more or less ob- 
scured by black atoms along the edge; two oblique black 
bars on the costa, one on the middle, the other between this 
and the apex, and separated from the black border by a white 
costal spot. There is also a black spot on the middle of the 
cell, with another below, and three beyond, between the 
veins. The upper side of the hind wings has a heavy, angu- 
Jated brown line a little within the outer margin, and a black 
costa broken by a white spot. Under side of wings brown 
from the base to the middle, with light and dark waves, then 
