PLATE XV. 



Fig. 1. Saw of Nematus Erichsoni. 

 Fig. 2. Saw of Nematus quercus. 

 Fig. 3. Saw of Nematus appendiculatus. 

 Fig. 4. Saw of Nematus hibernicus. 

 Fig. 5. Saw of Nematus ruficornis. 

 Fig. 6. Saw of Nematus Fletcheri. 

 Fig. 7. Saw of Nematus nigricollis. 



The figures of the saws are magnified X 200. 



