234 



EXPLANATION OF THE PLATES. 



PLATE II. 



Fig. 



1. Andrena ferox cS • 



2. Andrena ferox § . 



la. Wing of Andrena, first type of 



neuration. 

 2b. Wing - of Andrena, second type 



of neuration. 



3. Wing of Cilissa. 



4. Panurgus calcaratus J . 

 4a. Wing of Panurgus. 



Fig. 



5. Ccelioxys veetis 2 ■ 

 5. Megachile maritima <$ . 

 6a. Anterior tarsus of Megachile 

 maritima S • 



7. Anterior tarsus of Megachile. 



toilhighbiella <$ • 



8. Anterior tarsus of Megachile 



circumcincta $ . 



PLATE III. 



1. Osmia pilicornis rf . 



2. Osmia pilicornis $ . 



3. Melecta luctuosa § • 



4. Apical segment of 



pyrina <$ . 



5. Apical segment 



argent ata J 1 . 



6. Apical segment 



centuncularis 



7. Apical segment 



ligniseca cS ■ 



8. Apical 



cornis <$ . 



segment 



0. Apical segment of Osmia auru- 

 lenta $ • 



10. Profile of the abdomen of 

 Megachile Osmia spinidosa <$ . 



11. Apical segment of Osmia spi- 

 Megachile nulosa rf . 



12. Wing of Ccelioxys. 

 Megachile 13. Wing of Anthidium. 



14. Wing of Nomada. 

 Megachile 15. "Wing of Melecta. 

 16. Wing of Stelis. 

 of Osmia pili- 17. Wing of Megachile. 



of 



of 

 of 



PLATE IV 



1. Anthidium municatum S ■ 



2. Chelostoma Jiorisomne $ . 



2a. Mandible of Chelostoma Jiori- 

 somne 5 . 



2b. Labrum of Chelostoma jiori- 

 somne s • 



2c. Apical segment of Chelostoma 

 Jiorisomne cS . 



2d. Profile of the abdomen of Che- 

 lostoma Jiorisomne J . 



3. Stelis octomaculata $ . 



4. Saropoda bimaculuta r£ . 



4a. Face of Saropoda bimaculuta 



Ceratina cyanea. 



o. 



4a. 

 6. 



7. 



8. 



Wing of Ceratina. 

 Wing of Saropoda. 

 Wing of Eucera. 

 Wing of Ammobates* 



1. Epeolus variegatus $. 

 2a. Hermaphrodite. — Anthophora 

 acervorum. 



PLATE V. 



2. Underside of the Hermaphro- 



dite. 

 3. Bombus lapponicus $ , 



* The genus Ammobates is not described in this work ; it is reported to have, 

 been taken in England, but the circumstance requires crmfiriiiation. 



