These are on Genesis: Part 1, but Dododex doesn't have them in that section. They're in the bog biome. Like so Dododex sees and can change this! And the reason I know this is That I was killed by them thrice in a row.
THESE THINGS ARE THE DEVIL! THEY ATTACK FROM THE TALL GRASS THEY WILL DRAIN STAM AND DO WAY TO MUCH DAMAGE AND WILD CARD NEEDS TO NERF. YOUR ONLY HOPE IS A SWORD OR A TORCH OR FLAMETHROWER GUNS ARE PRETTY MUCH USELESS SINCE THEY SO SMALL! I LOST ALL MY STUFF IN THE BOG TO THESES A**HOLES