A. fumigatus is the most common species isolated, followed by A. flavus and A. niger.
Aspergillus, section Fumigati species are the most common ones isolated, followed by those from sections Flavi and Nigri. So-called cryptic species are relatively common causes of invasive disease.
Yamamuro R, Kimura M, Asano-Mori Y, et al. Clinical and Microbiological Characteristics of Proven Invasive Aspergillosis Due to Rare/Cryptic Species in Allogeneic Hematopoietic Stem Cell Transplant Recipients. Antimicrob Agents Chemother. 2022 Jan 18;66(1):e0163021. doi: 10.1128/AAC.01630-21. Epub 2021 Nov 15. PMID: 34780271; PMCID: PMC8765323.