Other non-insect classes include spiders, scorpions, whipscorpions, harvestmen, ticks, mites, sea spiders, crustaceans, millipedes, centipedes, pauropods and symphylans. Araneae Salticidae Spiders differ from insect in that they have eight legs rather than six. This small tropical jumping spider is a proficient day hunter that does not rely on webs to catch its prey. Two of the eight eyes are large and forward facing giving this spider good binocular vision. Using strong hind legs, these spiders hunt by stalking and leaping on its victims while trailing a safety line of silk behind them.
Spiders are extremely important in keeping insect populations under control.