part of wing fringe tertiary fringe scale Fig 17,19 Abbr: TFS in ISBN:0-937548-00-6. One of the small linear scales set in two rows on the wing margin, on the dorsal surface just inside the row of fringe scales and the other on the ventral surface just inside the row of secondary fringe scales; poorly developed or absent in males. TGMA:0000240 TGMA:0000240 border scale default_namespace dorsal basal scale ventral basal scale linear scale