Alexidia solitaria is a species of beetle of the Staphylinidae family. This species is found in south-eastern Brazil (Minas Gerais).
Adults reach a length of about 1.74 mm and have a dark wine-brown colour.
Adults have been collected from an undetermined young orange-white fungus/myxomycete on a decaying tree.
The species epithet is a Latin word meaning âÂÂaloneâÂÂ, because the single known specimen was collected alone.