Laboulbenia elaphri Speg.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 147

Laboulbenia elaphri Speg.

MB#180484

Fig. 30B

Anales del Museo Nacional de Historia Natural de Buenos Aires 26: 464 ( Spegazzini 1915a). –

Type: “ Sulle elitre del Elaphrus cupreus originario del Belgio (Coll. Mus. Civ. Genova, n.21)”; LPS. [ Belgium]

Laboulbenia buehlmannii Poelt ( Poelt 1952: 116) [MB#299200]

Laboulbenia bänningeri Baumgartner ( Baumgartner 1951: 32 r) (nom. inval., as L. Bännigeri) [Not registered in MycoBank]

Diagnostic features

Outer appendage once ramified into two subequal branches above the second cell. Perithecium asymmetric with the ventral side distinctly more convex than the dorsal side; perithecial tip large with an almost flattened apex. [Detailed description: Majewski 1994b]

Distribution and hosts

Known on Elaphrus (Col. Carabidae ) from Europe: Belgium (type), Finland, France, Germany, Hungary, Poland, Sweden, Russia ( Santamaria et al. 1991), Latvia ( De Kesel & Krastina De Kesel 2006), Switzerland ( Hoess & Senn-Irlet 2009), Czech Republic ( Rossi et al. 2010). Also reported on Nebria ochotica Sahlberg from China ( Lee & Lim 2000), a record that requires confirmation. Rostrup (1916) mentioned the host but not the fungus name from Denmark.

Collections examined from Denmark

On Elaphrus cupreus Duftschmid, 1812 (Col. Carabidae )

DENMARK – Lolland, Falster, Møn (LFM) • Lysemose ved Maribo ; 54°46.971′ N, 11°28.959′ E; PF57; 7 May 2017; JP 652; JP det.; ZMUC C-F-123141 . – Nordøstsjaelland (NEZ) • Brønshøj ( Degnemosen ); 55°42.043′ N, 12°30.352′ E; UB47; 26 May 2016; JP 287; JP det.; ZMUC C-F-122766 . – Sydsjaelland (SZ) • Denderup Sø i Denderup Vaenge ; 55°15.075′ N, 11°57.366′ E; PG82; 5 May 2016; JP 83; JP det.; ZMUC C-F-122558 .

Remarks

First record from Denmark. Rossi et al. (2010) characterized well this species, which is difficult to separate morphologically from L. flagellata except for the flattened and large perithecial apex. Laboulbenia elaphricola J. Siemaszko & Siemaszko (1928) , sometimes included among the synonyms of L. elaphri , is a distinct species ( De Kesel & Krastina De Kesel 2006; Rossi & Christian 2020).

Figures

Fig. 30. Laboulbenia spp. A. L. egens Speg. Paired thalli, one mature at left and one immature at right. – B. L. elaphri Speg. Mature thallus. Scale bars: 50 µm. Photographs from slides ZMUC C-F-122883 (A), ZMUC C-F-123141 (B).