Chermes. HEMIPTERA. , 2I 



winged infects leap or fpring with great agility, 

 and infeft a great number of different trees and 

 plants : the females infert their eggs under the 

 furface of the leaves, by means of a tube, with 

 which their abdomen is armed, thereby caufing 

 the little tubercules, or galls, with which the 

 leaves of the am, the fir, and other trees, arc 

 fometimesalmoft wholly covered. 



Genua 



