Isognathus mossi
Diagnostic description:
Most similar to Isognathus menechus but smaller; ground colour of body and wings, both above and below, much darker; forewings relatively shorter.
Male: Forewing upperside similar to Isognathus menechus but ground colour darker; semicircular pattern element near tornus present but inconspicuous. FWL: 36 mm.
Female: FWL: 41 mm.