INSECT "BLIGHTS AND BLESSINGS." 



131 



diately accepted, Professor Riley writing, " Send me a ship-load 

 if you can." But I could not do that, so sent him a pill-box 

 full, or about three thousand. These he carefully distributed 

 to three of his entomological stations, and I had the satisfaction 

 of hearing that a number had been successfully reared and 

 apparently obtained a hold. 



As an instance of what can be done in this way I have only 



Fig. 24. 



to again mention Professor Riley's most successful introduction 

 of predaceous insects from Australia into the States for the pur- 

 pose of destroying the Orange Scale insect. Such a work will 

 long stand as a monument to Professor Riley, who was without 

 doubt one of the greatest and most practical of economic ento- 

 mologists ever known. 



Fig. 26 shows a cluster of eggs, each of which is suspended at 

 the end of a long silken thread. These belong to the Golden- 



