Dopterians are a humanoid race native to the Alpha Quadrant, notable for their physiological similarities to Ferengi, and their inability to be read by telepaths. (DS9 episode: "The Forsaken")

A Dopterian competed in an interplanetary gymnastics meet at the University of Mississippi on Earth in 2245. (DS9 short story: "Old Souls")

• Dopterian article at Memory Alpha, the wiki for canon Star Trek.