Spider mites are classed as a type of arachnid. Additionally, spider mites are related to a number of other insects that include: spiders, ticks, daddy-longlegs, and scorpions. Spider mites are small and often difficult to see with the unaided eye. Their colors range from red and brown to yellow and green. The change of appearance will vary from the species of spider mite and seasonal changes.
Many spider mites produce webbing, particularly when they occur in high populations. This webbing gives the mites and their eggs some protection from natural enemies and environmental fluctuations. Webbing produced by spiders, as well as fluff produced by cottonwoods, often is confused with the webbing of spider mites.