Insect and Spider Identification: CLOSED: Tiny Black/Bronze/Green Shiny Beetles, 1 by adbjwb

adbjwb wrote:
Thousands of these tiny bugs have attacked our Coreopsis Jethro Tull. Our plants were large clumps but have reduced to nothing but black stems. Now that the plants have no more green, the bugs are migrating from the Butterfly Garden onto the concrete patio and are headed to other beds. What are they and how can I control them while protecting the Monarch Butterfly caterpillars, butterflies and hummingbirds?

They are pictured on a small yogurt cup. That's a little Butterfly Weed seedling on the left.

Thanks, you all!!