They are red, 1mm long and about 100 or so of them on top of my Brute 30 gallon food safe plastic trash can (which I use to hold water I de-chlorinate with vit c powder).
I'm in zone 7a, tulsa ok.
Looks like a velvet mite. There are many types. In Oregon, the adults bite in self defense. It's not bad, just a little pinch. They like leaf litter, moss, and moisture, usually.
OK this is weird and maybe my dad was messing with me but he told me when they were kids they would smoosh these poor little mites and rub the red on themselves for good luck or something :P Is that a thing anywhere else?