146 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. & 



time required for oviposition being 50, 45, 40, 50, 40 seconds, respect- 

 ively. She then started feeding on a newly formed pupa which was 

 put in the vial. After inserting her ovipositor in the pupa she kept 

 working it up and down for 1 minute and 5 seconds. She then with- 

 drew it and fed for 40 seconds at the puncture, after which she inserted 

 the ovipositor in the same puncture and worked it up and down for 

 40 seconds, when she again withdrew it and fed for 40 seconds on the 

 juices which came from the puncture. Then she worked her ovipositor 

 in the pupa for 20 seconds, fed for 25 seconds, worked for 5 seconds and 

 fed for 10 seconds more. She then examined the pupa and left it. 



A few hours later this same parasite oviposited in 5 pupse in 1 minute, 

 10 seconds; 1 minute; 45 seconds; 40 seconds; 2 minutes, 5 seconds; 

 respectively. The other parasite during the day parasitized two- 

 spun-up larvae and 5 pupae without feeding on any, the time required 

 being 1 minute; 50 seconds; 35 seconds; 1 minute, 35 seconds; 40 sec- 

 onds; 5 minutes, 45 seconds; 2 minutes, 45 seconds. 



On November 1 one oviposited in a pupa in 2 minutes and 5 seconds. 

 A pupa was then left in the vial for a few hours and when again exam- 

 ined showed that the parasite had fed on it. She immediately par- 

 asitized a fresh pupa placed in the vial, taking 1 minute and 45 seconds 

 to complete the oviposition. 



A fresh pupa was put in and the parasite started feeding on it. 

 After making a thorough examination she thrust her ovipositor into 

 the pupa and kept working it up and down, as in previous instances, 

 for 1 minute and 15 seconds, after which it was withdrawn and she 

 fed at the puncture for 30 seconds, afterward again inserting the ovi- 

 positor in the same puncture and working it up and down for 45 

 seconds. Then she withdrew it and fed for 30 seconds; worked 

 for 45 seconds, fed for 30 seconds, worked for 35 seconds, 

 fed for 20 seconds, then she went to a new place on the pupa 

 and inserted her ovipositor and kept w^orking it up and down for 1 

 minute and 40 seconds, then she fed for 35 seconds, worked 45 seconds 

 and fed for 30 seconds. She then examined the pupa and left it. 



During the day 6 pupse had been placed in the vial wath the other 

 parasite and she was observed to oviposit in all of them but feed on 

 none. This parasite died during the next 3 or 4 days, which were quite 

 cold, and the other parasite showed little activity. However, on the 

 morning of November 6 it was noticed that she had fed on a pupa which 

 had been left in the vial over night. A spun-up larva was placed in the 

 vial and she oviposited in it in 1 minute and 25 seconds. When she 

 withdrew her ovipositor she placed her mouth parts to the puncture 

 and fed a few seconds. This seemed to stimulate a desire to feed, 

 for she immediately attacked the larva in a new spot and, after insert- 



