14 MASSACHUSETTS HORTICULTURAL SOCIETY. 



sea, notably in the large olive plantations owned by Mr. Elhvood 

 Cooper, of Santa Barbara. Hundreds of thousands of the beetles 

 were distributed in California, and in some localities kept the- 

 black scale in check. Away from the moist coast regions, how- 

 evei'j it proved to l)e less effective. 



Subsequently the speaker introduced from Italy a curious little 

 Chalcidid parasite known as ScuteUisfa cijanca, and endeavored 

 to acclimatize the species in Louisiana upon the wax scale. The 

 parasites, however, died out. Later other specimens of the same 

 parasite were sent to the speaker from South Africa by Mr. C. P. 

 Lounsbury with the statement that it is there a parasite of the 

 black scale. \Vith Mr. Lounsbury's help. South African specimens 

 were introduced into California and there colonized by Mr. E. M. 

 Ehrhorn, Horticultural Inspector for Santa Barbara County, 

 and Mr. Alexander Craw, Quarantine Officer of the State Board 

 of Horticulture. The first successful introduction occurred in 

 1900, and during the following years it was constantly distributed 

 in California and by the close of 1903 many orchards had been 

 practically freed from the black scale and the good work still 

 continues. 



After Mr. Koebele's second oriental trip he resigned his position 

 in California and was employed by the newly estal)lished Hawaiian 

 Republic for the purpose of traveling and collecting beneficial 

 insects to be introduced into Hawaii. He has since continued 

 his work under that government and has imported many insects 

 some of which are said to have accomplished good results. For 

 example, a ladybird known as Coccinella repanda was brought by 

 him from Australia and China and is said to have exterminated 

 plant-lice on sugar cane and other crops. Another ladybird, 

 Crijpiolaemus motif rouzieri, is said to have destroyed the scale 

 insects on coffee plants and other trees; while a Chalcidid para- 

 site known as Chalcis ohscurata, introduced from China and Japan,, 

 is rejiorted to have multiplied enormously at the expense of an 

 injurious caterpillar which had attacked banana and palm trees. 



The San Jose scale, while attacked by various internal para- 

 sites proved in the eastern United States to thrive in spite of their 

 presence, and in 1901 and 1902 Mr. C. L. Marlatt, Assistant 

 Chief of the Division of Entomology pf the Department of Agri- 



