Somabrachys arcanaria
{{Short description|Species of moth}}
{{Speciesbox
| taxon= Somabrachys arcanaria
| authority= Milliére, 1884
| synonyms=
}}
Somabrachys arcanaria is a moth in the Somabrachyidae family.{{LepIndex |id=75813 |accessdate=May 14, 2018}} It was described by Pierre Millière in 1884.