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 Stigmatomyces hydrelliae Thaxt. MB#193297 Fig. 59G–J Proceedings of the American Academy of Arts and Sciences 36: 404 ( Thaxter 1901a ) . – Type : “ On the superior surface of the abdomen, sometimes on the legs of Hydrellia sp. Kittery Point , Maine ”; FH . [ USA ] Diagnostic features Basal cell of appendage supporting a series of three ± isodiametric cells, each bearing solitary antheridia on the inner or outer side, except the upper cell which gives rise to two antheridia, the distal of which is spinose ( Fig. 59I , sx). Perithecium with an oval venter and a well-distinguished short neck, which tapers distally into an asymmetrical and rounded, constricted near the tip, showing a lip which extends into a pointed projection ( Fig. 59J , arrow). Perithecial outer wall cells arranged helically, forming conspicuous ribs and protuberances on the distal region of the venter ( Fig. 59I ). [Detailed descriptions: Thaxter 1908 ; Dainat 1971 ; Majewski 1994b ; Weir & Rossi 1995 ] Distribution and hosts This is a common species reported from Europe : Portugal , Spain , France , United Kingdom , Italy , Denmark , Poland , Finland and Russia , as well as from the USA and New Zealand ( Majewski 2008 ). The thalli from New Zealand ( Hughes et al. 2004 ) may belong to a separate species. Recently reported from the Netherlands ( Haelewaters & De Kesel 2020 ). On species of the genus Hydrellia ( Diptera Ephydridae ). Collections examined from Denmark On Hydrellia griseola (Fallén, 1813) ( Diptera Ephydridae ) DENMARK – Bornholm (B) • Almindingen ; 55°7.448′ N , 14°56.114′ E ; VB90; H.J. Hansen Dry0015 ; ZMUC C-F-124029 • Snogebaek ; 55°1.512′ N , 15°6.887′ E ; WA09; 18 Jun. 1964 ; L. Lyneborg et al. Dry0013 ; T. Zatwarnicki det.; ZMUC C-F-124027 • Sose ; 55°2.801′ N , 14°50.531′ E ; VB90; 20 Jun. 1965 ; O. Martin et al. Dry0014 ; T. Zatwarnicki det.; ZMUC C-F-124028 . – Nordøstjylland (NEJ) • Klitplantagen , Laesø ; 57°17.795′ N , 11°2.022′ E ; PJ25; 12 Jul. 1969 ; Zool. Mus. Exp. Dry0019 ; ZMUC C-F-124033 • Nordmarken , Laesø ; 57°18.919′ N , 11°4.819′ E ; PJ25; 16 Jul. 1969 ; Zool. Mus. Exp. DrY0016 ; ZMUC C-F-124030 • ibid.; 24 Jul. 1969 ; Zool. Mus. Exp. Dry0017 ; ZMUC C-F-124031 • ibid.; 27 Jul. 1969 ; Zool. Mus. Exp. Dry0018 ; ZMUC C-F-124032 . – Nordøstsjaelland (NEZ) • København ; 55°41.332′ N , 12°33.762′ E ; UB47; 23 Sep. 1905 ; W. Lundbeck Dry0020 ; ZMUC C-F-124034 . – Sydsjaelland (SZ) • Knudsskov ; 55°3.534′ N , 11°44.251′ E ; PG70; 14 Oct. 2013 ; JP 1197 ; W. Gritsch det.; ZMUC C-F-123721 . Remarks Majewski (2008) reported the presence of this species from Denmark on Hydrellia griseola and H. maura Meigen, 1838 (see Table 1 ).