New British Laboulbeniales

Twelve species of Laboulbeniales associated with beetles (Coleoptera) are reported from the British Isles for the first time: Hydrophilomyces hamatus, Asaphomyces tubanticus, Laboulbenia argutoris, L. marina, L. polyphaga, Autophagomyces falcatus, Stichomyces conosomatis, Euphoriomyces liodivorus, Rickia zanetti, Cantharomyces orientalis, Monoicomyces homalotae and M. nigrescens. The genus Drusilla (Staphylinidae) is reported as a new host for Monoicomyces homalotae and at the species level an additional six parasite-host associations are recorded. For each of the new British species diagnostic features are noted and the known geographic distributions and host ranges summarized.