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EXPLANATION OF THE PLATES. 



PLATE VII. 



1. Labium of Cilissa lepo- 



rina $ . 



2. Maxilla of Cilissa lepo- 



rina $ . 



3. Labium of Dasypoda Mr- 



tipes ? . 



4. Maxilla of Dasypoda Mr- 



tipes 5 . 



5. Labium of Panurgiis Bank- 



sianus 5 - 



6. Maxilla of Panurgus Bank- 



Fio>. 



7. Labium of Megachile ma- 



ritima $ . 



8. Maxilla of Megachile ma- 



ritima $ , 



9. Mandible of Megachile 



maritima 5 . 



10. Antenna oi Megachile ma- 



ritima $ . 



11. Labium of Osmia bicor- 



nis 5 . 



12. Maxilla of Osmia bicor- 



sianus $ , 



nis $ . 



PLATE VIIL 



1. Labium of Ant hi ditim ma- 10. Maxilla of Nomada sex- 



2. 



3. 



4. 



5. 



nicattim $ . 



Maxilla of Anthidium ma- 

 nicatum $ . 



Mandible of Anthidium raa- 

 nicatum 5 . 



Labium of Chelostoma fio- 

 risomne ? . 



Maxilla of Chelostoma fio- 

 risomne $ . 



fasciata $ . 



11. Labrum of Nomada sex- 



i 



fasciata $ . 



12. Labium of Ceratina cmru- 



lea^ , 



13. Maxilla of Ceratina cceru- 



lea $ , 



14. Labium of Epeolus varie- 



gatus $ . 



6. Labial palpus of Heriades 15. Maxilla of Epeolus varie- 



truncortim $ . 

 7. Mandible of Chelostomafio- 



risomne 5 . 



ibrum of Chelostoma Jio~ 



risomne $ . 

 9. Labium of Nomada sexfas- 



data $ . 



8. 



gatus 5 . 

 16. Labium of Stelis ph^o- 



ptera $ . 

 17- Maxilla of Stelis pheo- 



ptera $ . 



PLATE IX. 



1. Labium of Ccelioxys 5 . 



2. Maxilla of Ccelioxys j . 



2a. Labrum of Ccelioxys $ . 



2b. Superior plate of the api- 2d. 



eal segment of C. ru- 

 fescens $ . 



2c. Inferior plate of the apical 



segment of C. rufescens 



(typical form) $ . 

 Inferior plate of the apical 

 segment of C. rufescens 

 (variety) $ . 



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