308 



EXPERIMENT STATION— BULLETINS. 



on the ends of short hairs (Fig. 10) attached to wheat stems, twigs of fruit 

 trees, in short to any plant that is harboring plant lice. The larvae 

 (Fig. 11) have strong, sharp jaws, and have well earned the name 

 aphis-lion, which has been aptly applied to them. These and the 

 syrphus-fly maggots work in confinement, or while we are holding 

 the aphis infected plant in our hand. The Braconid fly and the 

 lady-bird beetles, on the other hand, are more timid and quite 

 easily disturbed; and so to see them at work we must approach them Fig 

 with care and handle them without the least jar. Thus in these Aphis-lion, 

 beneficial insects I have described the little friends that have come to the 

 aid of the farmer and banished disaster. 



A. J. OOOK. 

 July 10, 1889. 



