419 
and were finally brought to light because of the greatly in- 
creased activity along entomological lines that was inaugurated 
at about that time, but on the other hand the quarantine estab- 
lished in 1902 has doubtlessly prevented many species from gain- 
ing an entrance into the Islands and presumably has been in- 
creasingly efficient in this respect. 
In the preparation of this paper I have received considerable 
help from Mr. A. B. Gahan, of the U. S. National Museum, who 
has generously compared specimens with types and supplied 
records of specimens in the National Museum. These records 
are designated by (U. S. Nat. Mus.) in the list. 
AGAONIDAE, 
1. *Blastophaga psenes (Linnaeus). 
Introduced in 1909 from California and its distribution is 
limited to a few trees in the Moanalua Gardens near Honolulu. 
2. *Pleistodontes froggatti Mayr. 
Introduced in 1921 from Sydney and recovered in June of 
the same year. It is now well established in Honolulu and at 
Waimea, Hawaii. 
3. *Pleistodontes imperialis Saunders. 
Introduced in 1922 from Sydney and recovered in July of 
the same year. Its present distribution is limited to a few 
trees in and near Honolulu. 
CALLIMOMIDAE. 
4. Podagrion beneficium Girault. 
One specimen is labelled (by inadvertence?) as taken in 
November, 1922, at Palolo, Oahu (Illingworth) but I have a 
suspicion that the record is erroneous and that the specimen is 
actually from Queensland. 
5. Megastigmus sp. 
One specimen was taken by Fullaway on a window in 
Honolulu, February 13, 1922, and the species is very likely not 
established. 

* Purposely introduced insects are starred throughout the list. 
