The most numerous insects crowding the boneset flowers for weeks on end during this unusually cool August were bumble bees and honeybees. There were also lots of tinier bee-like creatures zigzagging across the plant or landing to feast at length. With those, it was very hard to tell if they were all the same kind or could be distinguished one from another in some way. Note the sacs of pollen on the legs of the honey bees and bumble bees.
These three bees raise the total count to 32.