Aspergillus pseudoustus is a species of fungus in the genus Aspergillus. It is from the Usti section. The species was first described in 2011. It has been reported to produce asperugins, austamide, austocystin, norsolorinic acid, versicolorin C, and averufin.
A. pseudoustus has been cultivated on both Czapek yeast extract agar (CYA) plates and Malt Extract Agar Oxoidî (MEAOX) plates. The growth morphology of the colonies can be seen in the pictures below.