Seen in large pond behind the library.
Bees pollinating S. ochroleuca and S. arcisepala
A lot of photos. Hope people find them interesting.
The Tricolored Bumble Bee Bombus ternarius is not a very reliable pollinator as it visited all the flowers, Aster, Golden rods and Tresses ...
The Subgenus Pyrobombus is a more reliable pollinator as it only visited the Tresses.