Twospotted Spider Mite and Lewis Mite Side by Side
Finally got the shot of twospotted spider mite and Lewis mite close to one another in the same picture for comparison. I've shared this with others, but these two mites tend not to be found together, and rather form colonies on different parts of the leaf.
However, here we go. Photography is mine, it's not great, but hopefully enough to help a bit. More explanation in the caption below the photo.
Twospotted spider mite at top, Lewis mites in the group of three toward bottom. Note the slightly larger size of the twospotted as compared to the Lewis. Markings are larger and more distinct for twospotted spider mite, and less so and running all along the side for Lewis.