The legs of the spruce spider mite are pale yellowish brown.
Males are smaller and more slender than females.
The eggs of these mites are red or brown, round and a little flattened. The larvae of cool weather mites are slightly larger than the eggs and have six legs. Nymphs are similar to adults although some nymphs are smaller. Biology Spruce spider mites are found throughout North America. Southern red mites are found in the eastern United States and California.