Mountelgonia pagana is a moth of the family Cossidae. It is found in north-eastern Rwanda. The habitat consists of a mosaic of wooded savanna, farmland and dry forests.
The wingspan is about 21.5 mm.Lehmann, 2013. Description of two new genera and ten new species of Metarbelidae (Lepidoptera: Cossoidea) from western, north-central and eastern Africa with notes on habitats and biogeography.
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