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 Cantharomyces aploderi Huldén MB#124443 Fig. 75C–E Karstenia 23: 45 ( Huldén 1983 ) . – Type : “ Host . Aploderus caesus (Erichson) ( Coleoptera , Staphylinidae ). Holotype . Slide L. Huldén 24, in MZH. Collecting data of the host: U.S.S.R. Karelian A.S.S.R.: Zaoneskje , Sungu , leg. Poppius ”; MZH . [ Russia ] Diagnostic features Cell II with a variable large dark spot on the dorsal margin ( Fig. 75D , arrow). Cells I and II separated by a constricted septum; forming a geniculate stalk. One to three cells above the appendage basal cell, strongly flattened, inflated, separated by constricted and slightly darkened septa ( Fig. 75D , *). Appendage branched above flat cells. Distribution and hosts Only known from the type , on Aploderus (Col. Staphylinidae Oxytelinae ) from Russia . Collections examined from Denmark On Aploderus caesus (Erichson, 1839) (Col. Staphylinidae Oxytelinae ) DENMARK – Lolland, Falster, Møn (LFM) • Engestofte ; 54°45.767′ N , 11°33.506′ E ; PF67; 12 Jul. 1951 ; V. Hansen Dry0112 ; V. Hansen det.; ZMUC C-F-124179 • ibid.; 13 Jul. 1951 ; V. Hansen Dry0111 ; V. Hansen det.; ZMUC C-F-124177 , C-F-124178 . Remarks First record from Denmark and the second after the original description. The host is considered rare in all parts of its distribution, thus the fungus is even more rare. A photo of this species is given here for the first time.