The Black Terror is a fictional character. created by Richard Hughes and Don Gabrielson, who originally appeared in Exciting Comics #9, published by Nedor Comics in January 1941. Some Black Terror stories were written by Patricia Highsmith before she became an acclaimed novelist. According to Wikipedia:

"The character first appeared in the Golden Age of Comic Books in Exciting Comics #9, published in January 1941 by Nedor Comics. He was one of that publisher's most popular superhero characters, operating until at least 1949.

His secret identity was pharmacist Bob Benton who formulated a chemical he called 'formic ethers' which gave him various superpowers. He used these powers to fight crime with his sidekick Tim Roland, together known as the Terror Twins."