This paper describes a new genus with a new species from Burmese amber, namely: Latedactylus longapedi gen. et sp. nov. (Tridactylidae: Tridactylinae). L. longapedi gen. et sp. nov. is erected based on the cylindrical second segment of cercus longer and distinctly slender than the first; metatibia without swimming plates; metatarsus about three times as long as apical spurs of metatibia.