Identified as a female Parides neophilus by the rounded shape of the anal angle of the hindwing (squarer in P. lysander); see Piñas 2001 (Mariposas del Ecuador, vol. 10a. Papilionidae). Compare the hindwing shape of the female type specimens of these two taxa at http://www.butterfliesofamerica.com/L/t/Parides_a.htm.
On the bank of the river Sao Benedito II, he sat in an extinct fireplace or nearby.
Second image shows underside of hindwing