SATYRUS II., III. 
inclose females in bags over grass, and before 18th, had got 125 eggs, which were 
sent me. I mention this, because it fixes the time at which the females lay 
their eggs after they have left their chrysalids, as it has been stated that ovipo- 
sition does not take place till five or six weeks after that event, which is erro¬ 
neous. 
On the prairies of Illinois and Wisconsin, and doubtless farther west to its 
limit, Nephele-Olympus abounds. Dr. J. P. Hoy, of Racine, Wisconsin, writes: 
“ Nepliele is the most abundant butterfly on the prairies four miles west of Ra¬ 
cine, the most common species in midsummer.” 
Nothing, however, was known till recently of the preparatory stages of Alope 
or Nepliele , except what was stated in Harris, 3d ed., 1862, where we read of 
Alope: “ The caterpillar is pale green with dark green stripe ; the head is 
round and the tail ends in a short fork. The chrysalis is elongated, roundish at 
the sides, with the head notched.” In 1877, in the Canadian Entomologist, 
vol. ix., p. 141, I gave the full history of Nepliele , having bred one butterfly 
from a lot of about fifty eggs laid by a female taken in the Catskills the previous 
year. The caterpillars from the Martha’s Vineyard eggs of 1877 all died during 
the winter, from my not having learned how to take care of them. But in 1878, 
I determined to try again, and applied, to several correspondents for eggs of 
Alope , Nepliele , and the Illinois type, and succeeded in getting many. At this 
time Alope and Nepliele were regarded by our most experienced lepidopterists 
as two distinct species, and it was thought that the intergrades did not bridge 
over the chasm which separated them. I was anxious to determine the position 
of these intergrades, and had begun to suspect, from what I had seen at Martha’s 
Vineyard, where Nepliele seemed to run into Alope , that we had here another 
case of dimorphism. 
Professor Lintner and Dr. James A. Bailey sent eggs of Alope from Albany, 
New York; Rev. George D. Hulst sent eggs of Alope from females caught 
at Hoboken, New Jersey; eggs of Nepliele were obtained from the Catskills, 
and Mr. Charles E. Worthington sent many of Nepliele-Olympus from Chicago. 
Besides these, I was able to secure Alope eggs myself at Coalburgh, West Vir¬ 
ginia. In every case the eggs were laid by typical females, not intergrades, con¬ 
fined over growing grass, and the females were sent me, that I might note the 
type. These five localities are separated by considerable distances : Hoboken 
is one hundred and fifty miles south of Albany ; the Catskills, at the point from 
which eggs were sent, are thirty-five miles southwest of Albany, but have two 
thousand feet greater elevation ; Coalburgh is eight hundred miles southwest of 
Albany ; and Chicago is one thousand miles west of Albany and eight hundred 
northwest of Coalburgh. 
