One of the Largest Mites
These are sometimes found on rotting wood. They are something like 3-4mm long. They always carry detritus, this one being less than most.
Olympus EM-1 (manual mode), Laowa 25mm f2.8 2.5x-5x ultra-macro, probably at x2.5 and f11, twin TTL flash, hand-held.
This has been cropped by about 50%.