149 



from tlie American Consul in regard to tlie low temperatures 

 during tlie fall and winter months and the interruption in the 

 steamship service due to the war led me to abandon these plans, 

 and as soon as I had ascertained that the parasites were develop- 

 ing in the Teneriffe material I decided to strike out for home. 

 After notifying Bridwell of the change of plans I took a French 

 steamer, the Mexican, on the 27th of September for Havana, 

 Cuba, reaching that port on the morning of the 15th of October. 

 From Havana I took a steamer for Key West, Florida, and came 

 thence by train through Jacksonville, Montgomery and ISTew Or- 

 leans to San Francisco, arriving in time to take the S. S. Wil- 

 helmina for Honolulu, where I landed on the 27th of October 

 with the following: 



300 male and female Tetrastichiis giffardi, 



12 female and 19 male Diachasma fullaioayi, 

 4 female and 22 male Opius, species undetermined, 



10 female and 2 male Spalangia, species undetermined; 

 also some parasitized pupae bred en route. Mr. Ehrhorn, 'being 

 advised of my coming by wireless, had collected a large supply of 

 infested fruits. On the morning following my arrival I began 

 multiplying the parasites in order to get large numbers for libera- 

 tion, and this work has been going on continuously ever since. Mr. 

 Bridwell is still in the field and is expected home sometime in 

 March. His orders were to remain at Olokemeji for at least three 

 months, to pay particular attention to the Braconid parasites of 

 the fruit flies, and to make every possible endeavor to discover 

 egg parasites. At last report he was in South Africa multiplying 

 the parasites secured in ISTigeria and investigating the South 

 African field. 



Of the four species brought to Honolulu by myself one — the 

 black Opius — produced only males in the first generation and 

 was lost to us unless it is among the species which Bridwell has. 

 The others have multiplied satisfactorily, 419 females and about 

 1000 males of Diachasma fullaivayi, 21,431 Tetrasticlins and 7 

 Spalangia having been produced at the time of this writing. Lib- 

 erations have been made as follows: 



