Mites are not much bigger than a pin-point...you have to look very closely. They can appear black, or red/brown (from the blood they suck).
Did you recently acquire this snake, is that why you're asking? Mites also hide around the eyes & chin on a snake...they are a serious health issue for 2 reasons:
1. Even if you only see a couple, they soon multiply exponentially & can kill a snake, even a big snake (from blood loss, dehydration, anemia, shock, heart failure).
2. They are thought to transmit diseases (including deadly ones like IBD).
So even if you only find a couple, never let your guard down....treat for mites. But if you don't find ANY (on multiple check-ups) do not subject snake to the chemicals
to kill mites...only if you "have to".
BTW, your BP seems to show some iridescence on his dorsal scales...a sign of good health. The tummy markings are typical. As I said, I cannot see any mites, but that's
doesn't mean you shouldn't inspect closely. I hope you don't find any.![]()