title: A new polymorphic species of Laboulbenia parasitic on a South American fly.
abstract: Morphologically different thalli of Laboulbenia richardiana sp. nov. (Laboulbeniales, Ascomycota) were found on various parts of the body of the South American fly Richardia teevani. These thalli lack a separate cell IV and have similar appendages and perithecial apices. They are interpreted here as 'growth forms' of a single biological species. Spore characteristics and insect behavior support this view, rather than the hypothesis of several different species displaying position specificity.
authors.affiliation: Department of Environmental Sciences, University of L'Aquila, 1-67100 Coppito (AQ), Italy. vrossi@univaq.it
authors.forename: Walter
authors.initials: W
authors.lastname: Rossi
authors.forename: Marion
authors.initials: M
authors.lastname: Kotrba
mesh_terms: D000818:Animals; D001203:Ascomycota / Q000145:classification* / Q000235:genetics / Q000254:growth & development*; D004175:Diptera / Q000382:microbiology*