Checklist of thallus-forming Laboulbeniomycetes from Belgium and the Netherlands, including Hesperomyces halyziae and Laboulbenia quarantenae spp. nov.
2020
Haelewaters,Danny | De Kesel,André
In this paper we present an updated checklist of thallus-forming Laboulbeniomycetes (Ascomycota, Pezizomycotina), that is, the orders Herpomycetales and Laboulbeniales, from Belgium and the Netherlands. Two species are newly described based on morphology, molecular data (ITS, LSU ribosomal DNA) and ecology (host association). These are Hesperomyces halyziae on Halyzia sedecimguttata (Coleoptera, Coccinellidae) from both countries and Laboulbenia quarantenae on Bembidion biguttatum (Coleoptera, Carabidae) from Belgium. In addition, nine new country records are presented. For Belgium: Laboulbenia aubryi on Amara aranea (Coleoptera, Carabidae) and Rhachomyces spinosus on Syntomus foveatus (Coleoptera, Carabidae). For the Netherlands: Chitonomyces melanurus on Laccophilus minutus (Coleoptera, Dytiscidae), Euphoriomyces agathidii on Agathidium laevigatum (Coleoptera, Leiodidae), Laboulbenia fasciculata on Omophron limbatum (Coleoptera, Carabidae), Laboulbenia metableti on Syntomus foveatus and S. truncatellus (Coleoptera, Carabidae), Laboulbenia pseudomasei on Pterostichus melanarius (Coleoptera, Carabidae), Rhachomyces canariensis on Trechus obtusus (Coleoptera, Carabidae), and Stigmatomyces hydrelliae on Hydrellia albilabris (Diptera, Ephydridae). Finally, an identification key to 140 species of thallus-forming Laboulbeniomycetes in Belgium and the Netherlands is provided. Based on the combined data, we are able to identify mutual gaps that need to be filled as well as weigh the impact of chosen strategies (fieldwork, museum collections) and techniques in these neighboring countries. The aim of this work is to serve as a reference for studying Laboulbeniomycetes fungi in Europe.
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