PLATE IV. 



I'HOC. ENT. SOC. WASH., VOL. XVI. 



scl 



cut 



rig 3. C7e7ws 



Mnsctes offec-finy t7te 

 ~fe le s copt c ?n oveTnen t 



pi -hypi ~-~ 





Clerus (x20j 



Muscles effecting tTte 



