246 



EXPLANATION OF THE PLATES. 



PLATE VIL 



Fig. 



1. Labium of Cilissa lepo- 



rina J . 



2. Maxilla of Cilissa lepo- 



rina $ . 



3. Labium of Dasypoda hir- 



tipes 5 . 



4. Maxilla of Dasypoda hir- 



tipes J . 



5. Labium of Panurgus Bank- 



sianus $ . 



6. Maxilla of Panurgus Bank- 



sianus 5 . 



Fig. 



7. Labium of Megachile m&- 



ritima $ . 



8. Maxilla of Megachile ma- 



ritima . 



9. Mandible of Megachile 



maritima ? . 



10. Antenna of Megachile ma- 



ritima J . 



11. Labium of Osmia bicor- 



nis$ . 



12. Maxilla of Osmia bicor- 



PLATE VIII. 



1 . Labium of Anthidium ma- 



nicatum 5 . 



2. Maxilla of Anthidium ma- 



nicatum ? . 



3. Mandible of Anthidium ma- 



nicatum J . 



4. Labium of Chelostoma flo- 



risomne 5 . 



5. Maxilla of Chelostoma flo- 



risomne $ . 



6. Labial palpus of Heriades 



truncorum J . 



7. Mandible of Chelostomajlo- 



risomne 5 



8. Labrum of Chelostoma jlo~ 



risomne 5 . 



9. Labium of Nomada sexfas- 



ciata 5 . 



10. Maxilla of Nomada sex- 



fasciata J . 



11. Labrum of Nomada sex- 



fasciata 5 . 



12. Labium of Ceratina cceru- 



13. Maxilla of Ceratina cceru- 



14. Labium of Epeolus varie- 



gatus J . 



15. Maxilla of Ei^eolus varie- 



gatus $ . 



16. Labium of Stelis phceo- 



ptera . 



17. Maxilla of Stelis phao- 



ptera J . 



PLATE IX. 



1. Labium of C&lioxys $ . 



2. Maxilla of Ccelioxys ? . 

 2a. Labrum of Calioxys $ . 

 2b. Superior plate of the api- 

 cal segment of C. ru- 

 fescens $ . 



2c. Inferior plate of the apical 

 segment of C. rufescens 

 (typical form) $ . 



2d. Inferior plate of the apical 

 segment of C. rufescens 

 (variety) ? . 



