What is the name of a small scorpion that lives in Maine. Black with a scull pattern on its back.?

The small scorpion you're referring to is likely the Eastern Black Scorpion (also known as the Black Scorpion or Scorpion with a Skull Pattern). It is known for its distinctive black coloration and the skull-like pattern on its back, making it easily recognizable. This species can sometimes be found in areas with sandy soil in Maine, although scorpions are generally rare in the northeastern United States.