96 



COMPETITION AND CONSTANCY. 



berry, while Bombus yielded 7 and 6 respectively. The total number of 

 visiting bees was 212 for the one and 21 for the other, while the flies went 

 to R. deliciosus alone to the number of 6. 



Table 63. — Competition of Rubus strigosus and R. deliciosus. 

 Experiment 1, one hour, 10 to 11 a.m., July 6. 

 Experiment 2, one hour, ^SO" to 10 h 30 m a.m., July 7. 

 Experiment 3, one hour, lO^O" 1 to ll h 10 m a.m., July 6. 



Table 64. — Competition of R. deliciosus and strigosus. 



In spite of the fact that it was the bouquet and hence out of place, the 

 total number of visitors to R. strigosus was 87 in comparison with 51 for 

 R. deliciosus. These were all bees, the single fly and butterfly going to 



