The chitin exoskeleton has great defense, granting the bugfolk resistance to bludgeoning damage as well as increasing their ac to 14 + your cons mod when not wearing armor. There are many thick plates of chitin though, The bugfolk needs different plates of it to be able to move, but that gives them a weakness to pricing damage due to cracks in the chitin armor. You cannot wear normal armor, it must be specially made by a blacksmith, it will cost 1.5x the normal amount of money and take 2d4 hours to create.

You gain a +1 to Dex, +2 to cons, a -2 to cha and -1 to intelligence 

They can see in dim light as if it were night light out to 60 ft, they can also see in darkness as if it were dim light

The bugfolk May take the dodge action as a bonus action in its turn only after hitting an attack

the horn on the head of the bugfolk gives them a natural weapon that deals 1d8 damage, and they are proficient with it, but the only damage modifier is proficiency, the attack modifier is dexterity. If you hit a wall or door, you must roll a constitution save with a dc of 7, or the horn breaks and regrows in 1d4+2 days. It also grants you advantage on strength (grapple) checks

as an attack action on your turn, you can secrete your bacteria in a gasease form in an area 10 feet around you for 10 rounds. Any creature that enters or ends its turn in the cloud must make a constitution save agains a dc of 8+your proficiency bonus + your cons modifier. A creature takes 2d8 poison damage on a failed save and half as much on a successful one, this damage increases to 3d8 at 6th level, 4d8 at 11th level, 5d8 at 16th level and 5d12 at 20th level.

Bugfolk reach maturity at age 16 and live to about 55 years old, but they can manage to live longer above ground, some that live above ground can even reach 100 years old.

Being ridiculed most of their life, they tend toward the chaotic side of alignments and are mostly neutral or evil, few bugfilk turn out to be good or lawful.

Bugfolk know a total of two languages, common and bug, but common can be traded out for undercommon 

Bugfolk have legs that carry them at 25 feet per turn, they also have clawed hands that allow them to burrow at a speed of 20 feet per turn, and finally they have their wings that allow them to fly at a slow speed of 25 feet.

You are a different kind of bugfolk, you have 4 wings! Your fly speed doubles and you gain the ability to carry creatures 1 size above your size category (you can even fly high and drop them if you would like)

This trait gives you a climb speed of 40 feet and allows you to even climb on difficult terrain as if it were normal terrain

This trait increases your burrow speed to 50 feet and gives you a natural wepon that you are proficient with, using strength as the modifier, your claws deal 1d6 damage as a bonus action or action.

You live with batería that gives you immunity to disease and poison and resistance to acid

This trait gives you a temporary +2 to one stat of your choice after every long rest or for one hit die in each short rest 

You may take an action to make a strength (grapple) check, on a success you bite the creature and suck it’s blood, the bite deals 1d6+cons mod piercing damage, the saliva deals 1d4 damage per round for 10 rounds, the player using the ability absorbs the health that the target of the ability lost due to the saliva.

Your strength stat increases by 1 and you are considered one size larger when determining your carry wieght 

You get 2 extra limbs of your choice and gain abilities base upon that choice. You may choose to either gain 2 more legs or 2 more arms.

Legs

when you choose to have 2 extra legs, you double your walking speed, gain advantage against strength (grapple) saves, and can use a bonus action to make 2 unarmed strikes with these legs.

Arms

when you choose to gain 2 extra arms you can wield two 2 handed weapons if you have the dual wielder feat, they also give you advantage on strength (grapple) checks. Two manacles are required to restrain you. If you have the sharp claws trait, your burrow speed doubles.