Lathal Bine was a Pelian, a resident of Beta moon, during the 24th century. Slightly impetuous and young, Bine nevertheless represented the Betans during Federation-mediated negotiations with Alpha moon in 2367.
Thirty years earlier, in 2337, Bine's aunt had also represented Beta during similar negotiations. In both instances the representative of Alpha moon was Kalin Trose and both instances were mediated by Ambassador Odan. (TNG: "The Host")