EXPLANATION OF PLATE III. 



Fig. 14. Odynerus bidens Sauss., £,var. 

 14a. Its bead £ enlarged. 



Fig. 15. Odynerus Iturbidi S«uss., % . 

 15a. Its head £ enlarged. 



Fig. 16. Odynerus arverisis Sauss., 9 . 



16a. Its clypeus 9 enlarged. 



Fig. 17. Odynerus Californicus Sauss., 9 

 17a. Its clypeus 9 enlarged. 



Fig. 18. Odynerus sulfureus Sauss., 9. 

 18a. Its head 9 enlarged. 



Fig. 19. Odynerus leuconielas Sauss., 9. 

 19a. Its head 9 enlarged. 



( 390 ) 



