74 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 17 
as the adults issued they could leave the compartment in which were the 
sawdust and puparia or the cocoons and go into an outer compartment 
where there was a supply of food and room for them to move about. 
These shipments were not successful as the adults issued and died en 
route. There should be more experimenting with this type of shipping- 
cage. It is believed that the sudden change in temperature and hu¬ 
midity which accompanies the placing of Tachinid puparia or Apanteles 
cocoons in cold storage must be harmful to the development of the 
parasites, especially while they are going through the delicate trans¬ 
formations from larvae to pupae to adults. 
At the close of the season’s work large numbers of parasites w^ere 
brought as hand baggage by the writers to Melrose. These parasites 
were packed by different methods and were not placed in cold storage. 
The final results of these transportation experiments cannot be given 
yet, as a large amount of the material is in hibernation, and until the 
issuance of the material in the spring is completed the whole story cannot 
be told. However, from the appearance of the parasites upon arrival at 
the laboratory, a few general statements can be made. For Tachinid 
puparia which are to hibernate as such, cold storage is not necessary 
and appears to be detrimental. For Tachinids and Apanteles, which are 
summer-issuing, cold storage is not satisfactory, but is necessary until a 
better method is developed. A few Tachinid puparia packed with 
slightly dampened sawdust in small containers such as pill boxes arrived 
at Melrose in much better condition than when packed in larger con¬ 
tainers. Slightly dampened sawdust was much superior to moss for 
Tachinid puparia. The sawdust used was apparently from hard wood 
and was very fine. 
All steamers on which shipments were sent were met upon arrival in 
New York and the material was taken directly to the Gipsy Moth 
Laboratory where the packages were opened in a tight room, reserved 
for the purpose, to avoid the escape of any hyperparasites. In this 
room the material was sorted according to species and then distributed 
for future care. Those species which have but a single generation were 
placed in various types of containers for hibernation and the summer¬ 
issuing species were used for breeding experiments. 
The following summary lists the European Tachinid parasites of the 
Gipsy Moth which were received at the Melrose Laboratory this 
summer: 
