Arctic Cannon Beetle

The Arctic Cannon Beetle is a variant of tundra Lithopod recently discovered on PNF-404 by famous Koppaite ranger Captain Charlie. It's the northernmost species of Lithopod, and the only one adapted to snowy landscapes.

Description
The exact adult forms of the Arctic Cannon Beetle had so far been undiscovered, but many people believe that its adult form resembles a less-armored version of the Armored Cannon Beetle. This is mostly evident as larval forms of this species almost exactly mirror the larva of the Armored Cannon Beetle.

Larva have a light green back and a lavender underbelly, possibly to better disguise in winter climates.

Unlike most species, but like the Firesnout Beetle, this species isn't able to produce rocks in its body to be used as projectiles. Instead, the Arctic Cannon Beetle can shoot out frozen water particles in the form of snowballs.

Previous theories thought that this is due to the lack of ore in its habitat, that most other Lithopods find accessible to in other regions. However, studies later show that the ice compounds are created through specialized internal bacteria, with pressurized fluids within the body acting like a coolant. The air is then heated up just enough to make the compounds freeze upon release.

Evolution
A possible theory about the species holds a similar ancestry to the Armored Cannon Beetle, with ancestors to this variant unable to migrate during the global climate shift. This meant that Greater Lithopods had to evolve in a colder climate.