race features:
Fey Ancestry: You have advantage against being charmed, and magic cannot put you to sleep.
Sunlight Sensitivity: You have disadvantage on attack rolls and Wisdom (Perception) checks that rely on sight whenever you, the target of your attack, or whatever you are trying to perceive is in direct sunlight.
Superior Darkvision: You can see in dim light within 120 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.
Tetrabrachial: You have four arms: you can hold four objects. You cannot benefit from a shield if you are holding two weapons, a versatile weapon in two hands, or a two-handed weapon. You may also not gain the benefit of more than one shield.
Web: When you reach 3rd level you can use your action to eject a mass of webbing that fills a 20-foot cube centered on a point you can see within 60 feet. This webbing has the same effect as the Web spell. The DC to break free of the webs is 8 + your Constitution score + your proficiency bonus. The webs dissipate after 1 hour. You are not affected by your own webs. You must finish a long rest before you can use this feature again.
Racial Description
Four-Armed Spiders: A Chitine is a four-armed creature covered head to toe in dark hair that usually stands at about 4 feet tall. Its six eyes can range in color from bright white to a dull yellow, even orange in rare cases. Their scrawny appearance can sometimes cause others to consider them weak. However, this is never the case, and one should never turn their back on a Chitine. Their four arms allow for a heightened ability to climb, as well as to lift objects. They secrete an oily substance on their limbs that renders them immune to their own webs' stickiness.
Drow Slaves: Chitine were originally created by Drow priests in a failed experiment to produce a slave race. Despite this failure, they were inducted into forced labor nonetheless. Under the Drows, Chitine were inducted en masse into the cult of Lolth. Only a century later, however, they rebelled against their masters violently and escaped the Drow city of the Underdark. Escaping the roving eyes of the pursuing hunters, the Chitine gathered into colonies. They continually repelled attempts from the Drow to hunt them out of existence. They have been recorded to negotiate with Driders to attack Drow cities, as well as forge defense pacts for their villages.
Spider Colonies: In the caverns of the upper and middle northern Underdark, Chitine weave complex web systems which nestle their villages at the heart. Some are located in the underground forests as well, while others remain slaves within certain houses of Drow. These webs are often built with labyrinthine design so Drow and other unwanted visitors may get lost or ensnared and starve to death or become a meal. At the center of every village is a temple to Lolth, a religion they inherited from the Drows.
Chitine Names: Chitine were created from rituals of the Drow, and therefore follow common Drow naming practices. However, Those who were born to a colony usually have names easily pronounced around their mandibles, mainly consisting of hard consonants and long vowels. They are mostly unable to pronounce vocal consonants such as g, b, d, or r. Due to the nature of these names, as well as their general applicability, it is theorized Chitine do not differentiate in names by gender.