1910] Graenicher, Bee-Flics in Their Relations to Flowers. 101 



totality of 94 visits 60 credited to species of Compositw, and this 

 amounts to 64% in favor of these flowers. These figures prove 

 rather conclusively that, so far as the relations of the bee-flies to 

 social flowers are concerned, the statement that the latter are very 

 rarely visited by the former does not apply to the temperate re- 

 gions of our continent. 



