U. S. NATIONAL MUSEUM 



PROCEEDINGS, VOL. 39 PL. 3 



WP. 



PH / „ IV 



/ PH n in ' 





aP 



PH y^ 



' / N, FN. 1 



m IV 



Thorax of Hymenoptera. 



For explanation of plate see page 89. 



Proc.N.M.vol.39— 10 7 



