Laboulbeniomycetes (Fungi, Ascomycota) of Denmark Author Santamaria, Sergi Unitat de Botànica, Departament de Biologia Animal, de Biologia Vegetal i d’Ecologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès (Barcelona), Spain. sergi.santamaria@uab.cat Author Pedersen, Jan Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Universitetsparken 15, 2100 København Ø, Denmark. japedersen@snm.ku.dk text European Journal of Taxonomy 2021 2021-11-26 781 1 425 http://dx.doi.org/10.5852/ejt.2021.781.1583 journal article 10.5852/ejt.2021.781.1583 2118-9773 5828924 Monoicomyces myllaenae Santam. MB#521398 Fig. 89D–E Nova Hedwigia 82 (3–4): 358 ( Santamaria 2006 ). – Type : “ SPAIN . Asturias : Parque Nacional de Somiedo , Pigüeces , on the abdominal apex of Myllaena elongata Matthews ( Coleoptera , Staphylinidae , Aleocharinae ), 22 June 2000 , S. Santamaria , …. HOLOTYPE : slide BCB–SS2329c ”; BCB . Diagnostic features Primary appendage unbranched, with darkened lower and dorsal margins. Cell III with a darkened outer margin. Antheridium with 1 st and 2 nd tiers of cells elongate and forming more than half of its total length. Each antheridium including four phialides. Perithecial stalk cell very elongated, up to three times the perithecial length. Distribution and hosts Only known from Spain ( type ) and the Netherlands (Haelewaters et al. 2014), exclusively on Myllaena elongata (Col. Staphylinidae ). Collections examined from Denmark On Myllaena elongata (Matthews, 1838) (Col. Staphylinidae Aleocharinae ) DENMARK – Sydjylland (SJ) • Nordborg Praestegårdshave ; 55°3.646′ N , 9°44.362′ E ; NG40; 12 Aug. 1936 ; Johs. Andersen Dry0148 ; Johs. Andersen det.; ZMUC C-F-124215 . Remarks First record from Denmark . The Danish material is in very poor condition although identifiable ( Fig. 89E ). A photograph of the type is added for comparison ( Fig. 89D ).