Clearly different from Sara Longwing or Cydo Longwing. Problem is, range of this species seems restricted to S. America, according to Butterflies of America, but there is no "heliconius" that matches up as well as "antiochus". I see no reason why this species hasn't moved out of S. America and into Panama. ssp: aranea.
left specimen according to https://www.inaturalist.org/observations/109941944
Specimen on the right according to https://www.inaturalist.org/observations/109941944