Central IL, USA; any ID would be appreciated bc he was ded until he wasn't and we don't know what to do

Here is the devlog:

Beetle indie game dev log week 2

i normally love bugs, but this one is freaking me out a bit just because idk where the little guy(or girl) came from. my cat was playing with it and i didn’t know what it was, so i moved it into the light and just was quite shocked. i am assuming its native to ontario, as thats where i am, but the size of it just caught me a bit off guard. it was walking slowly and not flying at all, i have trapped it and dont want to release it if its not native to ontario. i have had millipedes and was made aware after using a certain leaf litter that its been known to possibly carry viable eggs that will hatch in your enclosure.

Here we have an l3 larva (that still have quite a lot left to grow) of Mecynorhina torquata ugandensis, blue line. This is a famous flower beetle from central Africa widely kept in captivity for its ease of care, huge color variability and relatively fast larval time; it's also impressively sized, second only among flower beetles to (not even all) species of the genus Goliathus, the Goliath beetles. This specimen in particular is a male. In the second pic he kinda looks like the brainbug from Starship Troopers.

I rarely find these guys in my area so when I do I just take em' in as pets because they are pretty easy to take care of as pets so yeah. They are one of my favorite beetles, so cute!! Last photo is the cutest imo lol

I put her back in the wooded area behind our facility.

Jewel beetle landed on me yesterday but its wings were messed up. Grabbed a piece of watermelon, took a couple pictures and put it in a safe spot.