130 



and to satisfy myself that saccliari was really distinct from purchasi. 

 This fact, while not absolutely opposed to the idea of the origin of the 

 Fluted Scale from the islands of Bourbon and Mauritius, because both 

 species may occur there, tends, nevertheless, to couhrm the prevailing 

 opinion, and that which I originally held, viz, that the native home of 

 the species is in Australia. 



A limited number of natural enemies and parasites have already been 

 discovered upon it in California. They are as follows: 



Among predaceous insects: 

 Chrfiftopa sp. 



Eippodainla amhujiia Lee. 

 Blastobasis iceryaella Riley 

 Blapstinns brevieoUis Lee. 

 ? Perimef/afomaci/Undricum Kirby, var. 



angnlare. 

 Largus succinctus. 

 Piesma cinerea Say. 

 Corizus hyalinus Fabr. 

 Peritrechus luniger Say. 

 Beosus sp. (probablj' new). 

 Lyctocoris sp. (probably new). 

 Piezostelhus sp. (probably new). 



Among trne parasites: 



Isodromus icery(e Howard, 

 Coccophayus n. sp. 

 Entidon n. sp. 

 Alaptus iceryce n. sp. 

 T^'oroii n. sp. 

 ? Goniozus n. sp. 



In Mexico: 

 Phora sp. 

 Scymnus amabilis Lee. 



In South Africa : 



Rodolia icerya' Baly. 



Now, as the number of these enemies (and particularly of the para- 

 sites) increases, the fruit-growers of California will get more and more 

 relief from the ravages of the Icerya ; but it i? an interesting fjict that 

 in Australia, which, as we have seen, is in all probability its native 

 country, thes])ecies is not so injurious as it is with us, the reason being, 

 doubtless, tliat it has natural enemies there wliich serve to keep it in 

 check, and which have not been transported with it to the countries of 

 its introduction. Here we have a case where it would be eminently tit 

 to have these enemies in Australia especially studied and to attempt to 

 introduce them to California ; for the successful accomplishment of this 

 would, without doubt, result in immense benefit to the people of that 

 State. With most of the parasites this would be an easy matter from 

 the very manner in which they are known to aftect the Icerya. In ftict, 

 since I delivered an address upon this subject, last spring, at Eiverside, 

 Cal., the people of that State have been alive to the importance of the 

 subject, and have in county and State conventions appealed by resolu- 

 tion to Congress to authorize the sending of a commission to Australia 

 for this purpose. 



This is nature's method of checking the evil, and one which it were 

 wise for man to adopt. At the present time it is possible for the fruit- 

 growers of California to protect their fruit trees by vigilant means and 

 rather large expenditure of time and money, and where these are not 

 employed ruin stares the orange-grower in the face. The introduction 

 of the natural enemies which keep the species in check in its native 

 country would soon bring about a change in this country, and its intro- 



