wingspan : 37 mm
this butterfly was considered a rarity one hundred years ago, and it was known exclusively from Eastern Amazonia and the Guyanas ;
seen near Puyo, first record ever in Ecuador.
ten years later David Geale saw a second one near Tena. https://www.noreste.eu/en/fiche-papillon/021-Riodinidae/003-Riodininae/005-Riodinini/009-Ancyluris/070-aristodorus/_
we found Ancyluris aristodorus near Puyo, at 3000 km from the center of its geographic range, at 1700 km from the nearest record.
it is the first record in Ecuador.