THE PEACH AND PLUM SLUG. 101 
The latter species was not reared by the writer, but on October 5 
8 eggs, from which this parasite had probably emerged, were found. 
Emergence is through a small round hole a little to one side of the 
center of the egg. 
In addition to the above enemies several specimens of a new 
species of ichneumon fly were reared from the larve at Tallulah. This 
species has been described by Mr. H. L. Viereck, of the Bureau of 
Entomology, as Hyperallus calirox.' It is shown, much enlarged, in 
figure 25. 
Specimens of this parasite were reared from larve which had been 
confined in the rearing cages for varying periods before entering the 
ground. The youngest larva, from which a parasite was reared, was 
removed from the tree on April 7, when it was about one-third grown, 
‘bh tis, 3 or 4 days from the egg. The parasite emerged 35 days later, 
on May 12. This period is, how- 
ever, rather longer than the aver- 
age, since this individual was de- 
veloping during the cold weather 
of April and May. All of the 
other specimens were reared from 
' vhich were nearly full 
growu at the time they were re- 
moved from the tree and placed 
in cages. From larve placed in 
a cage on April 16, 2 parasites 
were reared on May 17, a period 
of 31 days. Fi. 25.—Hyperallus calirox, a parasite of the peach 
From larve placed ina cage on and plum slug. Much enlarged. (Original.) 
July 12,2 parasites were reared on August 10,a period of 29 days. An 
adult of the host emerged on July 26,15 days before the parasites 
appeared. 
From larve taken on August 10, two parasites were reared on 
September 1, a period of 22 days. ‘Three adult sawflies emerged on 
August 19, 13 days before the parasites. 
From larve confined in a cage on August 12, one parasite was 
reared on September 3 (period, 22 days), one on September 4 (period, 
23 days), and one on September 7 (period, 26 days). Adult saw- 
flies were reared from this lot on August 20, 22, and 23, an average 
of 12.5 days before the first parasite, 13.5 days before the second, 
and 16.5 days before the last parasite. 
From larvze removed from the tree on August 19, two parasites 
were reared on September 18, a period of 30 days. The only adult 
sawfly reared from this lot was one which evidently remained over 
time as a prepupa and emerged September 16, only two days ahead 
of the parasite. 
1 Proc. U. S. Nat. Mus., vol. 40, p. 189, 1911. 
71419°—Bull. 97—12 § 
