I have a streptocarpus that is covered in mites. It's doing pretty well, considering, and I haven't seen the mites on any nearby gesneriads. I was trying to determine what variety of mites they are. I don't see any spider mite webbing, but how do you tell the difference between cyclamen and broad mites? Attached pics taken at 150x magnification, one in situ two suspended in oil. This was one of the larger ones. I couldn't locate any eggs. They're pretty fast-moving, and they hang out along the lower parts of the central vein and all over the underside of the leaf. Alcohol doesn't bother them, and neem oil only seems to work at 100% concentration.