env. male 38, female 50 mm
Mesosemia metuana is a highly variable species from Colombia to Peru (with a ssp in Bolivia) ; it had a number of subspecies, the majority of which have now been synonimised.
East or West of the Andes males are very variable, without any visible geographic criteria - the male on the "Northern form" page looks exactly like ssp vargasi from Western Colombia.
but for females in the Oriente there are clearly geographic zones : wide white stripes and angular hindwings in the North, and, in the South, hindwings getting rounder and white stripes narrower until disappering in Peru, and it would seem that females from the West look like those from the north.
