The black spider was found near Folsom Prison, the California jail where Cash performed in 1968 and wrote the track Folsom Prison Blues.

It has been named Aphonopelma johnnycashi by biologists.

"It's found along the foothills of the western Sierra Nevada mountains, and one of the places that's there is Folsom Prison," researcher Dr. Chris Hamilton explained.

"It's a perfect name. It fits the spider - it's found around Folsom and the males are predominantly all black, so it fits his image... and I have a Johnny Cash tattoo, so I was very happy that it worked out that way."

Cash was known throughout his career as The Man in Black because he rarely wore another colour onstage.