480 



EXPLANATION OF THE PLATES. 



PLATE IX. 



PLATE X. 



1. Stigmus pendulus . 



2. Psen ater. 



3. Cerceris orientalis. 



4. Cerceris {Trachypus) 



nodis. 



5. Crabro cribrarius. 



6. Wing of Cemonus. 



7. Wing of Philanthus. 



8. Wing of Ceraiophorus. 

 bi- 9. Wing of Pemphredon 



10. Wing of Diodontus. 



1 1 . Wing of Passalacus. 



PLATE XI. 



