Tom Littleton wrote:

nice, Sandy......one notable thing I have noticed before about your western
Baetis/BWO hatches is the range of
body coloration. I figure I am seeing multiple species, or
perhaps subspecies, as much of the other colors and markings are quite
similar.

.......or is it males and females?
I wondered the same thing Tom. The olive-bodied
ones don't have the red eyeballs.
I often have red eyeballs. especially on sunday mornings,
so maybe that's the male indicator.

Those bugs are about 3/16" long, so at F5.6
with a 105 macro lense and a closeup tube extension,
you have to get about 6" from the bug to shoot,
which isn't easy in moving water, and there is
no depth of field. On a brighter day, or maybe
if I bumped the asa up.....

I'll get better at this. I'm planning on making
this the year of the live bug photo.