Red spider mite 2
Spider mite is extremely small, barely visible with the naked eye as reddish or greenish spots on leaves and stems; the adults measure about 0.5 mm.
During the summer, spider mite has a greenish brown appearance with two darker spots, but as winter approaches it gains a strong red color. That’s why they are also known as “red spider”. Some populations are permanently greenish or reddish, and these are considered different species of Tetranychus by some authorities.