400 INSECT ARCHITECTURE. 



summer months, on the terminal shoots of this tree, 

 in the form of a small cone, much like the fruit of the 

 tree in miniature, but with this difference, that the 

 fruit terminates in a point, whereas the pseudo-gall 

 is nearly globular. Its colour also, instead of being 

 green, is reddish ; but it exhibits the tiled scales of the 

 fruit-cone. 



We have mentioned this the more willingly that it 

 seems to confirm the theory which we have hazarded 

 respecting the formation of the bedeguar of the rose 

 and other true galls — by which we ascribed to the sap, 

 diverted from its natural course by insects, a tendency 

 to form leaves, &c., like those of the plant from which 

 it is made to exude. 



