WHOLE VOL. APPLIED ENTOMOLOGY HOWARD 507 



1893 Introduction into California of Rhizohhts vcntralis from Australia to kill 

 black scale. — Good result. 



1893 Introduction from Australia into California of Cryptolacmns montrou- 

 sicri for mealy-bugs.— Work repeated with equal success in France. 



1896 Introduction from Ceylon to Hawaii of Coccinella rcpanda against sugar 

 cane aphids; and of Chalcis obsciirata from China against Omiodes 

 blackbourni, a Lepidopteron attacking bananas and palms. 



1899 Sending from Australia to Hawaii of numerous parasites against wax 

 scales and sugar cane leaf-hopper. — Several of them were very impor- 

 tant and established themselves. 



IQOO Importation into California from Cape of Good Hope of Scutcllista cyanea 

 against the wax scale. — Appeared to be lost, but was found after 

 20 years. 



1902 Introduction from China into the United States of Chilocorus against the 

 San Jose scale. — Good success. 



1904 Importation from Spain into California of CaUiephiaUcs mcssor, parasite 



of codling moth. — Successful but of doubtful value. 



1905 Importation into Italy of different Coccinellids and Hymenopterous para- 



sites of the white scale of the mulberry from North America, South 



Africa and Japan.— Good result. 

 1905 Attempted acclimatization in America of European parasites, especially 



Tctrastichus xanthomclacnac, of the elm beetle.— Species has not been 



recovered. 

 1907 Importation into Australia of South American parasites of the fruit-fly. — 



No success. 



1907 Attempted introduction into South Africa of American parasites of ticks. 



1908 Attempted introduction into Algeria of a burrowing wasp (Monednla) 



capturing gadflies. 



1910 Attempted acclimatization in Dutch East Indies of American parasites 



of different tobacco caterpillars. 



191 1 Search in India for various parasites of Aleyrodes and their attempted 



introduction into Florida. 

 1913 Attempted introduction into France of American parasites of Polychrosis. 



Work Still in Process 



Importation into United States of the European and Asiatic parasites of the 



brown-tail moth. 

 Introduction into Hawaii of parasites of fruit-flies. 

 Importation into Europe of the North African and East African parasites of 



the olive fly. 

 Acclimatization in different regions of Aphclinus mali. 

 Introduction into America of the European parasites of the alfalfa weevil. 

 Introduction into America of the European parasites of the European corn borer. 

 Utilization in France of the California parasites of the potato tuber-moth. 

 Search in Europe for the parasites of the pear leaf midge for sending to New 



Zealand. 

 Importation into Italy of the East African parasites of Chrysomphalus minor. 

 Search in Japan, Korea, China, India, and Russia for the parasites of the 



Japanese beetle, for the United States. 



