XD I had the same thing happen with some regular mealworms I had tried to feed my tarantula once. They had disappeared from the bowl I'd set them in, and I thought she had eaten them...and about a week later, I noticed little beetles crawling around the enclosure. It took me about 10 minutes to figure out what they were, but I thought I had some kind of infestation, lol.

You shouldn't be creeped out by them, but I agree with the poster who suggested freezing them. They won't harm you...at the most they might pinch you a bit, but there's nothing to be afraid of, they definitely won't be able to break your skin, and they have no venom or other kind of poison. Just scoop them up with your hands, you'll be fine.