EXPLANATION OF PLATE III. 



Fig. 14. Odf nerus Mdeiis Sauss., % , var. 

 11a. Its Lead £, enlarged. 



Fig. 15. Odyueius Iturbidi Sauss., £ . 

 15a. Its head £ enlarged. 



Fig. Id. Odynerus arvensis Sauss., 9. 



16a. Its clypeus 9 enlarged. 



Fig. 17. Odynerus C'alifornicus Sauss., 9, 

 17a. Its clypeus 9 enlarged. 



Fig. 18. Odynerus sulfiireus Sauss. t 9. 



18a. Its head 9 enlarged. 



Fig. 19. Odynerus leucomelas Sauss., 9. 

 19a. Its head 9 enlarged. 



( 390 ) 



