Herpomycetaceae The Herpomycetales is an order of fungi within the class Laboulbeniomycetes.

The order includes a single dioecious genus, Herpomyces, with 27 accepted species[1] of obligate ectoparasites that are associated exclusively with cockroaches.

[2][3][4][5] The order was described in 2019 based on the phylogenetic analysis of three gene regions.

[6] A more recent phylogeny found that Herpomycetales and Laboulbeniales are not sister clades,[7] which provides evidence for the idea that the thallus originated at least twice in the class Laboulbeniomycetes.

The draft genome of Herpomyces periplanetae has been sequenced and assembled[8]—the only one in the class thus far.