124 
Psyche 
[June 
Interval in Days Between Initial Capture and Last Recapture 
Fig. 1 . Data on the duration of occupation of a home range by males initially 
captured while patrolling an emergence site and then marked and released. 
in early May. Because males spend the night in shallow burrows 
and under rocks they run the risk of becoming drenched during 
rains. Judging from the matted thoracic hairs of survivors ob- 
served after the rains, many males did become soaked and this 
may have caused mortality in some cases. 
Efforts to determine the size of home ranges of individual males 
were hindered by the great rapidity with which the bees flew over 
