Coreomyces macropus Thaxt. MB#270152 Fig. 4H Memoirs of the American Academy of Arts and Sciences 16: 327 (Thaxter 1931). – Type: “ On the inferior margin of the left elytron of Centrocorixa Kollari (Fieb.), No. 1751, Mandeville, Jamaica (Wight)”; FH. Diagnostic features Cell I almost twice longer than broad. Cell II 3–4 times as long as broad. Terminal cell (III) 1.5–2 times as long as broad. [Detailed descriptions: Majewski 1994b; Santamaria 2003] Distribution and hosts On the same hosts as previous species including Centrocorixa but excluding Cymatia and Micronecta. Coreomyces macropus grows on the lower outer margin of left hemielytron. It has been reported from Jamaica, Russia, Romania, Bulgaria, Poland (Majewski 1973b), Spain (Santamaria 1989), Turkey, Denmark, and Sweden (Sundberg 2018). Collections examined from Denmark On Sigara distincta (Fieber, 1848) (Heteroptera Corixidae) DENMARK – Lolland, Falster, Møn (LFM) • Jydelejet, Møns Klint; 54°59.127′ N, 12°31.517′ E; UA49; 12 May 2018; JP 1198; M. Holmen det.; ZMUC C-F-123722. – Vestjylland (WJ) • Simmelmose; 55°46.299′ N, 9°3.519′ E; NG08; 2 Jun. 2019; JP 1528; M. Holmen det.; ZMUC C-F-124284. On Sigara falleni (Fieber, 1848) (Heteroptera Corixidae) DENMARK – Nordvestjylland (NWJ) • Thy, Voldum Sø (now Vullum Sø); 57°4.912′ N, 8°47.641′ E; MJ82; 1948–1965; coll. unknown 1199; E. W. Kaiser det.; ZMUC C-F-123725. On Sigara limitata (Fieber, 1848) (Heteroptera Corixidae) DENMARK – Vestjylland (WJ) • Simmelmose; 55°46.299′ N, 9°3.519′ E; NG08; 2 Jun. 2019; JP 1529; M. Holmen det.; ZMUC C-F-124287. On Sigara scotti (Douglas & Scott, 1868) (Heteroptera Corixidae) DENMARK – Vestjylland (WJ) • Simmelmose; 55°46.299′ N, 9°3.519′ E; NG08; 2 Jun. 2019; JP 1527; M. Holmen det.; ZMUC C-F-124282. On Sigara semistriata (Fieber, 1848) (Heteroptera Corixidae) DENMARK – Vestjylland (WJ) • Simmelmose; 55°46.299′ N, 9°3.519′ E; NG08; 2 Jun. 2019; JP 1530; M. Holmen det.; ZMUC C-F-124289. Remarks No noteworthy variations have been observed.

Published as part of Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, pp. 1-425 in European Journal of Taxonomy 781 on pages 40-41, DOI: 10.5852/ejt.2021.781.1583, http://zenodo.org/record/5828924