PARASITIC AND PRf DACHOUS INSECTS. 



ACKNOWLEDGMENTS. 



}Iy thanks are duo, in the first place, to Mr. Maskell,of Wellington, 

 New Zealand, for kindly naming all theCoccidae met wit li in my travels, 

 which made my work much easier, as the various insects could thus be 

 sent here with more accurate directions as to liberating upon t he proper 

 scales: also to Rev. Blackburn, of Adelaide, South Australia, lor naming 

 all the numerous known and unknown species of Coccinellidse found in 

 Australia. The descriptions of the new species will be published in 

 the '-Transactions of the Royal Society of South Australia, 1 ' in which 

 eleven Dew species found have already appeared. Credit is due to the 

 gentlemen of the State Board of Horticulture tor having so promptly 

 taken the insects from the steamer on arrival and for having forwarded 

 the same, on ice when necessary, to Los Angeles and Santa Barbara, 

 while those that I wanted here were liberated upon such scales as 

 directed ; also, for having kept me informed as to the condition in which 

 the insects arrived and the progress they made; especially to the presi- 

 dent, Hon. Ellwood Cooper, who never failed to write with every out- 

 going mail, keeping me informed of the doings of insects received by 

 him. Thanks to his deep interest in the matter and to the fidelity with 

 which my instructions were carried out, he has succeeded so well that 

 four of the most effective enemies of the Black Scale were already found 

 breeding in large numbers at his place, during a two hours' search on 

 August 1, L892. Without doubt others will turn up in due course ot 

 time. 



THE COLLECTION, FORWARDING, AND LIBERATION OF INSECTS. 



Ten days were spent in the surroundings of Honolulu, four weeks in 

 New Zealand, seven months in Australia, chiefly in Xew South 

 Wales, and two months were consumed in a trip to New Caledonia 

 and Fiji. 



The fust lots of insects (excepting those from Honolulu, which went 

 to the State board) were all sent to Mr. Coquillett, at Los Angeles; 

 later, duplicates were also sent to the State board for trial upon Aspid- 

 iotus pernieiosua Comst. and other coccids found in northern Cali- 

 fornia. Two lots were sent to Eon. Ell wood Cooper, at Santa Bar- 

 bara, to be liberated upon the Olive Scale {Lecanium oleic Bern.). 



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