PLATE XIX. 



Fig. 1 . Saw of Dolerus scoticus. 

 Fig. 2. Saw of Dolerus tinctipennis. X 80. 

 Fig. 3. Saw of Dolerus Gessneri ; 3 a, transverse pro- 

 cess. 



Fig. 4. Saw of Dolerus coracims. 

 Fig. 5. Saw of Dolerus anthr acinus. 

 Fig. 6. Saw of Dolerus oUongus. 

 Fig. 7. Saw of Dolerus megapterus. 

 Fig. 8. Saw of Dolerus possilensis. 



