You gain a +1 in wisdom, dexterity and constitution

You have immunity to poison and the poisoned condition due to your poisoned blood. And due to your exoskeleton have a resistance  to slashing and bludgeoning damage however like all  bugs have a vulnerability to fire.

Due to your exoskeleton you have your have a natural armour of 13+con

You gain proficiency in some actions due to your harsh life as a bug and your increased number of limbs

Pick two from: survival, athletics, acrobatics, and perception.

You have 4 arms and 2-4 legs. This also grants you the dash bonus action and climbing speed.

You speak, read and write common and one other language which changes to the innate language of the next creature you eat. You can also communicate with any other bug like creature or monster using your pheromones.

You evolved to be stronger than any other insect like creature and can control them. You can cast dominate person or animal on any insect like creature once per day. You also gain these benefits at the designated level:

Lvl1:A bug that eats vocal cords and allows you to speak there innate language

Lvl3:A recon bug that can go out and look at surroundings while communicating what is sees with you (You can also look through it eyes for 10 minuets once per short or long rest not replacing your own sight)

Lvl5:An armour bug that acts like a shield and provides a plus 3 to your Ac

Lvl7:A sword bug that you can wield like your own arm or a sword and does 1d8 slashing damage on a hit

Lvl9:A gatling gun bug that uses you whole turn to fire shots equal in amount to your level dealing 1d4 piercing damage (Can only be used 3 times per long rest)

Lvl11:A large sized Centipede that allows you to make an attack that does an area of effect sweeping attack using it's body dealing 4d8 slashing 4d8 bludgeoning and  damage and 4d4 poison damage. Anyone hit is grappled as well as restrained  on a failed dex save. Enemies his are under the poisoned condition and  must make a con saving throw every turn  after 4 rounds or stay under the poisoned condition if the target fails the con save 5 times they will go under the paralysed condition for one turn and continue rolling saving throws. The targets not under the grappled or retrained condition are under the incapacitated condition for one turn.

Lvl13:A barrage of bugs That engulf an area of 200 feat centering around the caster creating cover and absorbing fire attacks used within. (Swarm has 250 or 30d10 +100 health which can only be attacked by aoe attacks like a breath weapon or fireball) Takes double damage from fire and obscures everyone from anyone's view however due to communing with bugs the player can see others and while in it takes no damage from aoe attacks as it is absorbed by the swarm which protects them.

Lvl15: All your damaging attack with bugs from this race go up by one dice type