A slender Agrilus. I'm not sure of the type of plant it was on, and did not photograph it either. I thought it was something in the Caprifoliaceae, but am unsure. So I will try to describe it from memory:
Medium-sized open shrub ~7' tall; leaves probably alternate, simple with alternating large and small teeth - visible in photo. Fruits arise along stem in small clusters, in an arrangement not unlike that of Pin Cherry. These were greenish (unripe) when I found them, round and maybe slightly oblong, and appeared to be covered in a powdery coating. No knobs or flower remnants, as I recall. Don't know if all this information helps.