Spider mite eggs are round (in photo) and are often found along the midvein on the underside of leaves. When spider mite eggs are first laid, they are transparent. They turn straw colored near the time of hatching. Eggs hatch into larvae and then two nymphal stages before becoming adults. Larvae are at the first colorless, and develop color as they feed. Their characteristic body spots are more distinct in the nymphal stage. Spider mite adults are easily recognized by their two dark spots on either side of their body.