Sandyman

It looks like one of the instars of a brown marmorated stink bug, which in New Jersey are attracted to green beans.

They are recently-arrived in the NJ area, maybe ten years or so ago, and no, you don't want them on your beans.

This fact sheet from Rutgers has suggestions for their control.

NJ State wants you to send them a report about that stinkbug. They say in the FAQs that they'd accept a picture or the bug itself if sent in a small bottle.

Hi Sandyman,

Based on the antennae, my guess would be some type of scarab beetle, perhaps a type of May Beetle or June Bug. Not sure though; I'm definitely not a bug expert lol.

Good luck.

Rick

Here is a link that might be useful: BugGuide - Scarab Beetle Family

Its not a stinkbug.
Its a beetle. I dont know what kind but I would guess a bad one.

I do believe they are called mexican bean beetles, and they will tear up the leaves on your plant. Either squash them with your fingers or bring a cup of soapy water out to the garden with you and pick each one off and put it in the soapy water.

Sandyman

To clear up confusion, why don't you send that picture in to your County Extension office and ask for an ID? And then let us know what it is -- I haven't seen that insect myself down here in Georgia. But you never know if it will show up or whether it's a good one or a bad one!

If you look at the link rdback posted, it sure looks like an Oriental Beetle.

Here is a link that might be useful: Oriental Beetle

jenniferg

I agree! Look at the feelers as well as the color patterns! It looks like they're considered to be a pest, too!

Too bad they're pests - it's really a good looking bug. Those little feelers are cuuuuuute!

sandyman

That little critter is so perfectly placed on that bean leaf it looks carefully posed! It's a great photo, BTW.