The chitine has advantage on saving throws against being charmed, and magic can’t put the chitine to sleep.

While in sunlight, the chitine has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

While in contact with a web, the chitine knows the exact location of any other creature in contact with the same web.

The chitine ignores movement restrictions caused by webbing.

Chitine have the ability to see in relative darkness up to 120 feet. Terrain, distance, and line of sight are the only limitations to the subject's ability to see, and the normal Spot check penalties apply on attempts to descry distant or small objects or creatures.
Darkvision is black and white only but otherwise like normal sight.
Superior darkvision does not grant the target creature the ability to see in magical darkness.

You can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check, and the usual movement penalties don’t apply to you.

At first level you know the spell web and can cast it once per short rest at second level without expending a spell slot.

Chitines have four arms, and as such can hold four objects. When you take a bonus action to attack with a light weapon in your other hand, you may make another bonus attack with a third weapon from a different hand. 

Your dexterity score increases by 2, and you constitution score increases by 1.