This bumble bee was one of at least fifty or so small bumble bees covering a purple aster (a bush about four feet tall all round, one itself of four or five others with similarly large clouds of these same small bumble bees).
This particular bumble bee had—like countless others—perhaps purposefully overstayed its time past sunset on this late September afternoon, and was now incapable of flight, bumbling like so many others from flower to flower in search of a good place to spend the night (to awake to nectar first thing next morning).
In the middle of some particularly arduous bumbling this bee fell, plummeting through the air with legs outstretched… and as it happened, caught hold of a thin blade of vegetation. Upon the end of which this poor little bee now struggled piteously before my gaze, only energy enough barely to try to hold on, and nowhere else to fall but the ground.
I paused for a moment (taking this picture), then quickly found a bumble-bee-free aster and bent it towards my bee in need. It flailed all the more wildly as the flower approached, and seized upon it as soon as it was barely within reach, forcibly pulling itself to safety in the upper flowers once more :)