Ant Climb. You can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Keen Sense. You have advantage on Wisdom (perception) checks that rely on smell.
Outer shell. You form an exoskeleton. Your AC can’t be less than 16, regardless of what kind of armor you are wearing for the duration of your hybrid form.
Resilient. Your hybrid form makes you particularly durable. If you take 10 damage or less that would reduce you to 0 hit points while in your hybrid form, you can choose to be reduced to 1 hit point instead. You can only use this feature once per hybrid transformation.
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one creature. Hit: 7 (1d8 + 3) piercing damage.