 At the time, Schroeter did not designate a type species for the genus, which resulted in some debate until a lectotype, "A. candidus", was eventually identified by Clements and Shear in 1931.With this change, "A. ruber" was excluded from the "Arachniotus" genus because it did not display type characteristics within its ascospores (3).Consequently, Orr, Ghosh, and Roy moved the species to the genus, "Pseudoarachniotus", in 1977.