IDC. 



EXPLANATION OF THE I'LATES. 



PLATE HI. 



Fig. 

 1 . TonpTie of Paraxphecodes. 

 '2. ^liixillii of Pdraspfiecodes. 

 ',i. AViii<; of Parnsphi'codes. 

 4. Lnbnini of Pfirfis/)liecodes. 

 .'). Toiifriu- of Sjdiecodes. 

 (). .MiLxilla of Sphecodes. 



7. Win<; of Sphecodes. 



8. Tongue of Oxystoglossa. 



Fig 

 [). 

 10. 

 11. 

 12. 

 1.'3. 



Maxilla of Oxystoglossa. 

 Win^ of Augochlora. 

 Maxilla of Megalopta. 

 Tongue of Megalopta. 

 Labruni of Megalopta. 



14. Antenna of Megalopta. 



15. "Wing o{ Megalopta. 



PLATE IV. 



1 . Tongue of Agapostemon. 



2. Maxilla of Agapostemon. 

 .'i. Labium of S of Agaposte- 

 mon. 



4. Labrum of $ of Agaposte- 



mon. 



5. Tongue of Nom,ia. 

 (). Wing of Nomia. 



7- Tongue of Anthoglossa. 

 H. Maxilla of /l»<Ao.<//oA'sa. 

 i^ Wing oi Anthoglossa. 

 10. Wing of Cilissa. 



11. MandMe of Callomelitta. 



12. Tongue of CaUomeUtta. 

 l.'l Wing of CaUomeUtta. 



14. Maxilla of CaUomeUtta. 



15. Antenna of CaUomeUtta. 



1 6. Tongue of Scrupfer. 

 17- Maxilla of Scra/j^er. 

 IS. Wing of Scrapter. 



19. Tongue oi MegacUissa, 



20. Maxilla of Megacilissa. 



21. Wing of ilfe^aci'&sa. 



PLATE V. 



1. Tongue of Andrena la- 



bialis. 



2. Maxilla of Andrena la- 



bialis. 

 .1 Wing oi Andrena labialis. 



4. Tongue of Macropis. 



5. Maxilla of Macropis. 



6. Wing of Macropis. 



7. Tongue of Panurgus. 



8. Maxilla of Panurgus. 



9. Wing of Panurgus. 



10. Tongue of Perdita. 



11. Maxilla of Perc/i/a. 



12. Labium of Perdita. 



13. Mandible of Perdita. 



14. Wing of Perrfi^fl. 



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. 



