Flight. The Abyssal Wasp can fly as an action.  When flying, it can move at a speed of up to 40 ft.  When it is flying, it gains an Armor Class bonus of +3, making it harder to hit.  

Swarm Power.  When fighting together, each individual wasp gets a +1 attack roll advantage for each other wasp in the encounter.  

Lost My Wings and Exoskeleton.  When the wasp reaches 0 HP, it's health will return back up to 6 HP, but it will not be able to fly, and it's walking speed will be reduced by 2, and it's Armor Class will be reduced by 5.  

Dive. Once per turn, the Abyssal Wasp can dive towards its enemy.  It can dive up to 25 ft. Any attacks used after diving get a +2 attack roll advantage and a (1d6) damage bonus.  

Stinger. Melee Weapon Attack: +4 to hit, reach 3 ft., 1 target. Hit: 1 (1d10 + 4) poison damage.  This attack leaves it's opponent Poisoned.   

Stinger Darts. Ranged Weapon Attack: +3 to hit, range 15/50 ft., 1 target. Hit: 1 (1d4 + 6) piercing damage.    

Sting with Contact.  When the wasp is killed, and the enemy is within 3 ft. of it, it can use the sting attack one last time, but with an attack roll advantage of +4.