Aspergillus insuetus is a species of fungus in the genus Aspergillus. It is from the Usti section. The species was first described in 1929. It has been reported to produce drimans, ophiobolin G, and ophiobolin H.
A. insuetus 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.