Need help IDing mites on Den.

[Spookytica]

Hi, I'm new to the Board, and hope that someone can help me identify the type of pest that has gotten into/onto one of my small dens. The plant is a fairly recent division and is just starting to put out new roots and canes. But something is on the leaves. I think it may be mites. Can anyone confirm or tell me if it may be something else? I've never had insect problems before so don't know much about them. I hope the photos are good enough to ID. If not, I can take others.

Thanks in advance for any help.