Radscorpion (Fallout 4)

Radscorpions are arachnids mutated from the Emperor Scorpion found in the Commonwealth in the 23rd century.

Background
Radscorpions are a lot more bug-like than their Capital Wasteland counterparts, meaning they are more bony and not bulky. They also seem to be caked in mud, as now they actually burrow into the ground below the player character.

Appearances
Radscorpions appear in Fallout 4.