196 



EXPLANATION OF THE PLATES. 



PLATE III. 



Fig. 



1 . Tongue of Parasphecodes. 



2. Maxilla of Parasphecodes. 



3. Wing of Parasphecodes. 



4. Labrum of Parasphecodes. 



5. Tongue of Sphecodes. 



6. Maxilla of Sphecodes. 



7. Wing of Sphecodes. 



8. Tongue of Oxystoglossa. 



Fig. 

 9. Maxilla of Oxystoglossa. 



10. Wing of Augochlora. 



11. Maxilla of Megalopt a. 



12. Tongue of Megalopt a. 



13. Labrum of Megalopta. 



14. Antenna of Megalopta. 



15. Wing of Megalopta. 



PLATE IV. 



1. Tongue of Agapostemon. 11. 



2. Maxilla of Agapostemon. 12. 



3. Labrum of $ of Agaposte- 13. 



mon. 14. 



4. Labrum of $ of Agaposte- 15. 



mew. 16. 



5. Tongue of Nomia. 17- 



6. Wing of Nomia. 18. 



7. Tongue of Anthoglossa. 19. 



8. Maxilla of Anthoglossa. 20. 



9. Wing of Anthoglossa. 21. 

 10. Wing of Cilissa. 



Mandible of Callomelitta. 

 Tongue of Callomelitta. 

 Wing of Callomelitta. 

 Maxilla of Callomelitta. 

 Antenna of Callomelitta. 

 Tongue of Scrapter. 

 Maxilla of Scrapter. 

 Wing of Scrapter. 

 Tongue of Megacilissa. 

 Maxilla of Megacilissa. 

 Wing of Megacilissa. 



PLATE V. 



1. Tongue of Andrena la- 



bialis. 



2. Maxilla of Andrena la- 



bialis. 



3. Wing of Andrena labialis. 



4. Tongue of Macropis. 



5. Maxilla of Macropis. 



6. Wing of Macropis. 



7. Tongue of P anurous. 



8. Maxilla of Panurgus. 



9. Wing of Panurgus. 



10. Tongue of Perdita. 



11. Maxilla of Perdita. 



12. Labrum of Perdita. 



13. Mandible of Perdita. 



14. Wing of Perdita. 



15. Tongue of Calliopsis. 



16. Maxilla of Calliopsis. 



17. Antenna of Calliopsis. 



18. Labrum of Calliopsis. 



19. Wing of Calliopsis. 



20. Tongue of Macrotera. 



21. Maxillary palpus of Ma- 



crotera. 



22. Wing of Macrotera. 



