The normal two-spotted spidermite, "Tetranychus urticae" aka "the Borg" comes in both red and green/yellowish. The cold half of the year they often appear in red.
From my last grow, ordinary color:
I found this picture on the web of a red spidermite on the left, and a predator mite in the right side of the picture for comparison.
This is a close up picture I took of a predator mite in my last grow.
BTW, I found a short treatment of high level CO2 with no light, to be as effective as any spray I ever tried. Predator mites was released as protection afterward and I haven't seen them since.
From my last grow, ordinary color:
I found this picture on the web of a red spidermite on the left, and a predator mite in the right side of the picture for comparison.
This is a close up picture I took of a predator mite in my last grow.
BTW, I found a short treatment of high level CO2 with no light, to be as effective as any spray I ever tried. Predator mites was released as protection afterward and I haven't seen them since.