Swamp Locust

 Swamp Locusts, also known as Stagnum Acrididae, are insect kaiju that first appeared in the MonsterVerse comic Skull Island: The Birth of Kong.

Name
The name 'Swamp' refers to the creature's natural habitat and 'Locust' is an insect.

Appearance
Swamp Locusts resemble large water nymphs with lamprey-like mouth and tiger-fish like teeth.

Personality
Swamp Locusts are ambush predators that lies upside down in the water and extend their wood-like claws to the surface before using them to grasp on unsuspecting prey.

Origins
The Swamp Locust blends so perfectly into its natural environment, it is hard to esimate how populous the creatures are. Lying beneath the surface of the swamplands to the east of the island, these submergent insectoids extend their woody limbs above the surface, making them indistinguishable from the abundant wetland foliage surrounding it.

If every woody branch that rises of up from the depths is connected to one of these creatures, there could be thousands of them, waiting to ensnare unsuspecting boars with their herbaceous claws.

Initial submersible scans are hard to read, but what we can discern through the murk is acreature that is all throat and teeth. While its lamprey-like mouth houses a perfect circle of phosphate incisors (reminiscent of the Congo's goliath tigerfish), the most remarkable feature is its gastrointestinal tract, which is a single continuous chamber that runs right through the core of the creature. In essence, the Swamp Locust is a primordial creature that evolution has refined into the most primal predator possible: a sentient throat with claws.

Skull Island: The Birth of Kong
When Aaron Brooks and his team tries to find shelter for the night, they unexpectedly startled a Swamp Locust. Evelyn Matemavi tries to shoot it but the bullets have little to no effect on the creature.