Coreomyces arcuatus Thaxt.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 39

Coreomyces arcuatus Thaxt.

MB#257238

Fig. 4F

Memoirs of the American Academy of Arts and Sciences 16: 324 ( Thaxter 1931). –

Type: “ On the inferior surface of the abdomen near the middle, or slightly to the left, of the tip of Centrocorixa Kollari (Fieb.), No. 1751, Mandeville , Jamaica, B. W. I.”; FH.

Diagnostic features

Cells I and II 1.5–2 times as long as broad. Terminal cell (III) 2–3 times as long as broad. Perithecium arcuate, laterally bent. [Detailed descriptions: Majewski 1973b, 1994b; De Kesel & Werbrouck 2008]

Distribution and hosts

Reported on Corixidae (Hemiptera) of the genera Centrocorisa Lundblad, 1928 (= Centrocorixa); Callicorixa White, 1873 ; and Sigara Fabricius, 1775 from Jamaica (type), Poland, Bulgaria ( Majewski 1973b), and Belgium ( De Kesel & Werbrouck 2008).

Collections examined from Denmark

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-124285 .

Remarks

First record from Denmark. Only a single thallus of this species has been found in its typical position on the host body, i.e., the middle part of 5 th abdominal sternite ( Majewski 1994b).

Figures

Fig. 4. A–D. Euzodiomyces lathrobii Thaxt. A–B. Reduced forms. C. Typical form. D. Labelling of a secondary axis, with antheridia (an) and perithecial initial with cell VII. – E. Zodiomyces vorticellarius Thaxt.; with labelled cell I and buffer projections (bf). – F. Coreomyces arcuatus Thaxt.; mature thallus. – G. Coreomyces corixae Thaxt.; mature thallus showing the appendiculate cells (ac). – H. Coreomyces macropus Thaxt.; mature thallus. Scale bars: A–C, E–H = 50 µm; D = 25 µm. Photographs from slides ZMUC C-F-123138 (A–B), ZMUC C-F-124066 (C), ZMUC C-F-122479 (D), ZMUC C-F-122570 (E), ZMUC C-F-124285 (F), ZMUC C-F-123723 (G), and ZMUC C-F-123722 (H).