Coreomyces corixae Thaxt.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 40

Coreomyces corixae Thaxt.

MB#183819

Fig. 4G

Proceedings of the American Academy of Arts and Sciences 38: 56 ( Thaxter 1902: 56, as corisae). –

Type: “ On inferior surface of abdomen of Corisa Kennicottii Uhler , Arlington , Mass ”; FH. [ USA] [this is the type according to Tavares 1985 and the host is Hesperocorixa kennicotti (Uhler) ]

Coreomyces italicus Speg. ( Spegazzini 1918: 321) [MB#192011]

Diagnostic features

Cells I and II 1.5–2 times as long as broad. Terminal cell (III) flattened. [Detailed descriptions: Thaxter 1908; Majewski 1994b; Santamaria 2003]

Distribution and hosts

This species has been reported on Corixidae (Hemiptera) of the genera Callicorixa White, 1873 , Corixa Geoffroy, 1762 (= Corisa ), Cymatia Flor, 1860 , Hesperocorixa Kirkaldy, 1908 , Micronecta ? Kirkaldy, 1897 ( Lee et al. 2008), and Sigara from Europe: Bulgaria, France, Germany, Hungary, Italy, Poland, Romania, Spain; America: Chile, USA; and Asia: China, Indonesia, Japan, Taiwan ( Majewski 2008). Recently reported from Denmark, Sweden, Turkey (Sundberg 2018), and Slovenia ( Rossi & Christian 2020).

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-123723 . – Vestjylland (WJ) • Simmelmose ; 55°46.299′ N, 9°3.519′ E; NG08; 2 Jun. 2019; JP 1528; M. Holmen det.; ZMUC C-F-124283 • ibid.; JP 1529; M. Holmen det.; ZMUC C-F-124286 • ibid.; JP 1530; M. Holmen det; ZMUC C-F-124288 .

Remarks

This species is very common, although according to Majewski (1994b) less frequent than C. macropus which very often coexists on the same host.

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).