1910] Girault and Sanders — Chalcidoid Parasites 23 
On Oct. 28, 1908, it was noted that the larvae remained unchanged; 
no further-‘note was made until April 28, 1909, when four fully colored 
pupae and one white one, were found, as well as five meconia, the 
shriveled remains of a larva of the parasite and the remains of the host 
pupa. At 10 A. M., April 29, 1 male and 2 females were found re- 
cently emerged; by the following day, at the same hour, another 
female had emerged. ‘The remaining pupa died. All were in natural 
temperatures. 
Case III. Ina vial containing 20 puparia and 20 dead larvae of 
Phormia regina — including a single puparium of Chrysomyia macel- 
laria — which were obtained from refuse matter late in October, 
1908, and thus confined, there were found on April 28, 1909, 11 of the 
puparia infested with the parasite as follows. All were in natural 
temperatures. 


No. { Host. Larvae. White pupae. Black pupae. Adults. Total. 
‘ 
ile Phormia |2 dead+1. 3. 3¢ 9. 
ee (broken). ile ile 
a7 | 2 4. 6. 
cal 9. 19,19 aby. 
De 8. 8. 
6. 1 Dp 6. 
vee 6. 6 
8. (ee 7 
9. The, 10. 
10. 1 dead. (a). 8. alta 
11. | Chrysom- Sy Mois 6. 
yia. 






In addition, lying loose in the vial were found 6 dark pupae and 1 
recently formed, as well as one adult regina. Thus the parasite was 
found in three stages — nearly all of the larvae had pupated and the 
adults were just beginning to emerge. On the following day, emer- 
gence became general throughout the whole lot and was completed 
on May 3d, some of the younger white pupae dying. Of the total 
number of parasites in this case there were more females than males. 
The sixty-one larvae recorded in table I, of which 38 were alive and 
healthy, were evidently hibernating, as the puparia had been in con- 
finement for over a month, and those parasites which matured had 
long since emerged. A few Phormia puparia, infested and isolated 
on Sept. 15, 1908, contained living, full-grown larvae on Nov. 7, 1908. 
