Re: Sharon's suggestion with kleenex: nope, no orange on the kleenex. Hooray I hope!
RE: The website Sue suggested makes me think it's more likely aphids or spider mites as there are no pustules. To that possibility, I think I should spray with a water/kitchen detergent mix. That can't hurt.
RE: Sue's suggestion to shoot on white paper--it's right below. This happens to be a very young plant, so leaves are five inches at a maximum.
Thank you, thank you both!