It looks like a millipede but it could be a centipede
Distinctive behavior; it was in constant motion while foraging, scurrying over the flowerhead without pausing at any individual flower. On Queen Anne's Lace. Saw one with the same foraging style on Asclepias.
Marshy lake shoreline.
On Lobelia sp. in large cement planter, Union Square Park.
On Rubus sp. leaf.