The Bumblebees. Various. The Sypphid Flies. 



Bombus vagans. 



The Honeybee. 

 Apis mellifica. 



Epistalis flavlpes. 



Syrpus Lesueurii. 



Bombus temapius ' '" Xwf \^^/' 



(Orange.b.nd«i) g^^bylius fratellus. 



CThese two files much enlarged) 



^^T?o\ydoridL card us. 



Bombus fpigjdus Bombyhusatpiceps. 



(Orange-banded) 



^ Megachile latimana 



Bombus Vipginicus (Leaf-cutter bee) 



Hal ictus confusus. 



Bombus teppicolaL 



"I 



Mai lota posticata. 



Andnena vicina. 



Halfctus &»Andpen& 

 are ground bees. 

 Bombus Pennsylvanicua Syrpus diversipes. 



BUMBLEBEES, BEES, AND FLIES CONCERNED IN THE 

 CROSS-FERTILIZATION OF FLOWERS. 



