PLATE XXV. 



Fig. 1. Saw of Nematus ribesii. 

 Fig. 2. Saw of Nematus pavidus. 

 Fig. 3. Saw of Nematus albipennis. 

 Fig. 4. Saw of Nematus bipartitus. 

 Fig. 5. Saw of Nematus rumicis. 

 Fig. 6. Saw of Nematus arcticus. 

 Fig. 7. Saw of Nematus vesicator. 



The figures of the saws are magnified X 200, 



