ARGYNNIS VII. 
the vertices prominent, the surface sparsely pilose ; color brown, behind fulvous. 
(Fig. g.) 
Thirty-six hours elapsed after suspension before the change to chrysalis took 
place, twenty-two days from the fifth moult. 
Chrysalis. — Length 1.2 inch, greatest breadth .43 inch; cylindrical, with an 
angular excavation below the mesonotum ; the whole surface finely corrugated ; 
head-case square, tranversely rounded, with somewhat prominent vertices : 
mesonotum prominent, compressed, carinated, rounded at summit, and with a 
sharp tubercle at base on either side ; two other tubercles just below and back of 
the head; wing-cases much elevated above the surface, the outer edges at base 
flaring; on the abdomen two dorsal rows of long, sharp tubercles, and smaller 
ones, corresponding to the first lateral spines on the larva, on the three or four 
middle segments ; color of the anterior portions and of the wing-cases light- 
brown, streaked with darker shades ; of the abdomen dark brown, mottled on 
the sides with red. (Fig. h.) ' Duration of this stage nearly twenty-one days ; 
making the time from the egg to the imago about nine months. 
NOTES ON" THE PREPARATORY STAGES OF ARGYNNIS DIANA, CYBELE, AND 
APHRODITE. 
After many discouraging attempts at raising the larvae of one or other of these 
species, I succeeded in bringing all from eggs to chrysalids in 1873-4. The 
females readily deposit their eggs in confinement, and at different times I had had 
hundreds hatch, but lost the young larvae almost immediately. Cybele is a com¬ 
mon species at Coalburgli, and in August and September multitudes of them may 
be taken on flowers, in the fields on Vernonia, in the garden on single zinnias, 
especially. Aphrodite is sometimes taken, but is rare, and as to Diana , though 
ten years ago I was able to take many, of late it has become almost extinct here¬ 
abouts. But on last of August, 1873, Mr. T. L. Mead brought from a locality 
fifty miles east of Coalburgli, among the mountains, several living females of 
Aphrodite and some sixty of Diana. These were placed iji boxes and kegs, with 
fresh plants of violet, as were also females of Cijbele, and a very large number of 
eggs were obtained of each species, laid upon the leaves and stems ot the plants, 
and also upon the sides of the boxes and the cloths which covered them. Diana 
also deposited freely upon stems of Vernonia, but I was never able to discover 
that the young larvae fed on that plant. Dr. H. K. Hayhurst, at Sedalia, Mo., 
to whom I had sent young larvae of Diana in 1869, wrote me at the time 
that in some instances they did eat the surface of the leaves of Vernonia Nova- 
boracensis. It is certain, however, that this larva thrives on violets ot every 
