CHAMAENERIUM ANGUSTIFOLIUM. 

 Table 31. — Visitors and visits to normal flowers. 



47 



to Chamaenerium during a half-hour period is given below, 9 stalks bearing 

 85 open flowers being observed. 



Calendar 1. — Visits to normal flowers. 



8 h 58 m Apis mellifica 3. 



9 00 Megachile relativa 8. 



9 02 Bombus juxtus 20. 



9 06 Megachile vidua 6. 



9 08 Megachile texana 15; Bombus occiden- 

 tals 11. 



9 09 Megachile texana 3; relativa 16; 

 wootoni 10. 



9 h ll m Apis mellifica 4; Bombus occidentalis 15. 



9 13 Apis mellifica 3. 



9 15 Bombus juxtus 3 ; hunti 5. 



9 17 Bombus juxtus 18; Selasphorus platy- 



cercus 7; Apis mellifica 5. 

 9 18 Apis mellifica 4; Bombus hunti 6. 

 9 35 Bombus bifarius 11. 



A summary of the above visitors is given in table 32. 

 Table 32. — Visitors to normal flowers. 



All the individuals of Bombus working on one group of flowers during an 

 hour were collected, with the results given in table 33. 



Table 33. 



