Systematics and Taxonomy Revalidated by Mielke & Grehan (2012). Wings have 'oxycanine" venation (seeGrehan, 2012).
Biology Unknown. Larvae are probably stem borers.
References Grehan, J.R. 2012.Morphological evidence for phylogenetic relationships within the Hepialidae (Lepidoptera: Exoporia). Bulletin of the Buffalo Society of Natural Sciences 42, 33-62. Mielke C. & J.R. Grehan 2012.Catalogue of the Latin American Hepialidae with taxonomic remarks (Lepidoptera). Nachricten des Entomologischen Veriens Apollo, N. F. 32: 131–158. Mielke, CGC & Grehan, J.R. 2015. Revision of the genus Aepytus Herrich- Schäffer,  (Lepidoptera: Hepialidae) with description of two new species from Brazil. The European Entomologist 7, 65-90.
Aepytus exclamans (Herrich-Schäfer ) Brazil: Atlantic forest between northeast São Paulo and Bahia states (Mielke & Grehan, 2015) Flight: December-March Holotype: Muséum National d'Historie Naturelle, Paris.
Aepytus guarani (Pfitzner, 1914) Brazil: Atlantic forest between 400 and 900 m from São Paulo to Rio Grande do Sul states, including inland areas in Paraná Flight: November-February Lectotype: Senckenberg-Museum, Frankfurt am Main