r/Slimemolds

Found these guys on a fallen log in the Chattahoochee National Forest in N. Georgia, USA.

I asked the bug reddits about this since there’s seems to be bugs all around it and my father was stung by some bug when he stepped on it. Someone directed me here for a potential answer. I will note that there was a small hole in the ground where one of these formed and it did have wasps I’m told so maybe unrelated/coincidental. It’s kind of freaky looking like the upside down. If anyone has an answer or could point me in a better direction I would greatly appreciate it.