Saturday I noticed one tiny insect acting rather like a bee, but it sure
was tiny!  Can someone tell me what it is, more or less approximately?
I can only describe it approximately!
 
It seemed to be less than 1/8 (maybe under 1/16?) inch long, and I
didn't have a magnifying glass handy, so I couldn't see much detail.
It was visiting flowers of a Phacelia Bolanderi plant.  It would land
on a stamen (!), and crawl around gathering pollen onto its legs.  It
must have been doing this a while already, as it had collected quite a
bit on its legs.  It seemed to gather most of the available pollen from
its stamen, too.  Then it would take flight and dither around 2 or 3
inches from the blossoms, and land on another flower stamen.  It
departed after several minutes (I wasn't counting); I kept checking but
didn't note another one.
 
Dick