I'll take a stab at it....perhaps one of the soldier beetles? There are many species, so you'll need to look at many images.

There are also different species of blister beetles and lightning bugs!

Here is a link that might be useful: Soldier beetle images

rhizo, is a soldier beetle a good guy? Hope not because I just put a lot of them into pail of soapy water.....
Nope, not a blister beetle, dealt with them on my alfalfa this summer.
My whole life I've never seen a lightning bug like this...so it's not that. I'll check your link.
Thanks!

Yep, rhizo, that's it!!!! Thank you. It even showed a pic of one on tansy flowers, where so many were.
Are these good guys or bad guys?
I shoulda checked first...but it's been such a bad year with bad bugs.....I'm getting to the point where I'm just squishing/soapy pail...ya know?
Except for the praying mantis I saw the other day. No mistaking that one!

Soldier beetles....google them! They are beneficial as adults and larvae. You're a lucky person, novice! Thanks for posting the image.

I'm going to attach my newest favorite web application. Some people think it's kinda 'snarky' (as it's been called), but I do NOT mean it that way. Just one more window into the world wide web. I hope you smile when you open it.

Here is a link that might be useful: Let me google that for you