Um a bit of questions...

The worm hunter & moth hunter achievment, which worm and moth do those refer to? I'm at mission 12 @ normal.

I remember seeing one giant worm that tunnels around, got 2 lines of yellow spots along its body, but i just evaded it and went to fight the vs boss. Then there is one big moth that causes something like hurricane whe it flies through. Are them those 2?