Laboulbenia calathi T.Majewski

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 134-135

Laboulbenia calathi T.Majewski

MB#363729

Fig. 26D , 104A

Polish Botanical Studies 7: 89 ( Majewski 1994b). –

Type: “ On Calathus melanocephalus (Linnaeus) , Ws. Pomiechówek , 28.8.1974 ( TM. 1474 – holotype); KRAM. [ Poland]

Diagnostic features

Cell V oval, half or a third of the length of cell IV, not connected with cell III, distinctively paler than its surroundings. Outer appendage unbranched. Inner appendage consisting of a small basal cell supporting short branches terminated by few antheridia in young thalli, but proliferating into some variably elongated sterile branches when ageing. [Detailed description: Santamaria 1998]

Distribution and hosts

This species is characteristic on Calathus (Col. Carabidae ). In addition to the type from Poland, it is known from Europe: Spain ( Santamaria 1996a), Belgium ( De Kesel 1998), Lithuania ( Markovskaja 2000), Latvia ( De Kesel & Krastina De Kesel 2006), Switzerland ( Hoess & Senn-Irlet 2009), Czech Republic ( Rossi et al. 2010), the Netherlands ( Haelewaters & De Kesel 2010), and Bulgaria ( Rossi et al. 2019a). Most of the records of L. polyphaga var. calathicola Speg. may also be here included, viz. Italy ( Spegazzini 1914), France ( Colla 1926), and Romania ( Bánhegyi 1949); but records on Bradycellus from Algeria ( Maire 1920) and Morocco ( Maire & Werner 1937) probably belong to L. eubradycelli .

Collections examined from Denmark

On Calathus cinctus Motschulsky, 1850 (Col. Carabidae )

DENMARK – Fyn (F) • Knudshoved Marina ; 55°17.781′ N, 10°50.542′ E; PG12; 18 Oct. 2017; JP 585; JP det.; ZMUC C-F-123071 . – Lolland, Falster, Møn (LFM) • Rødbyhavn ; 54°39.569′ N, 11°21.958′ E; PF55; 7 May 2017; JP 399; JP det.; ZMUC C-F-122882 . – Nordøstsjaelland (NEZ) • Ud for Kongelundsfortet ; 55°33.724′ N, 12°33.731′ E; UB46; 15 Apr. 2018; JP 1055; JP det.; ZMUC C-F-123572 • Vest for Trørød ; 55°50.223′ N, 12°31.185′ E; UB49; 13 Nov. 2016; JP 134; JP det.; ZMUC C-F-122610 .

On Calathus fuscipes (Goeze, 1777) (Col. Carabidae )

DENMARK – Lolland, Falster, Møn (LFM) • Møns Klint, Syd ; 54°56.985′ N, 12°32.270′ E; UA49; 3 Aug. 2019; JP 1488; JP det.; ZMUC C-F-124074 .

On Calathus melanocephalus (Linnaeus, 1758) (Col. Carabidae )

DENMARK – Fyn (F) • Bagenkop ; 54°45.201′ N, 10°40.616′ E; PF06; 5 Oct. 2016; JP 148; JP det.; ZMUC C-F-122627 . – Lolland, Falster, Møn (LFM) • Nykøbing ; 54°46.279′ N, 11°52.845′ E; PF87; 17 May 2017; JP 411; JP det.; ZMUC C-F-122895 • Ulvshale ; 55°2.301′ N, 12°16.244′ E; UB20; 25 Sep. 2016; JP 145; JP det.; ZMUC C-F-122624 . – Nordøstsjaelland (NEZ) • Vest for Trørød; 55°50.223′ N, 12°31.185′ E; UB49; 13 Nov. 2016; JP 135; JP det.; ZMUC C-F-122611 • ibid., 21 Jun. 2017; JP 440; JP det.; ZMUC C-F-122925 . – Nordvestsjaelland (NWZ) • Eriksminde syd for Korshage ; 55°57.744′ N, 11°46.504′ E; PH70; 27 Oct. 2019; JP 1535; JP det.; ZMUC C-F-124294 • Kongstrup Klint på Røsnaes; 55°43.730′ N, 10°58.299′ E; PG27; 20–26 Sep. 2014; JP 235; JP det.; ZMUC C-F-122715 • Maglesø Plantage ; 55°38.136′ N, 11°41.186′ E; PG66; 18 Feb. 2017; JP 284; JP det.; ZMUC C-F-122763 . – Sydsjaelland (SZ) • Køge Nordhavn ; 55°27.698′ N, 12°11.386′ E; UB24; 19 Oct. 2019; JP 1517; JP det.; ZMUC C-F-124272 .

On Calathus micropterus (Duftschmid, 1812) (Col. Carabidae )

DENMARK – Nordøstsjaelland (NEZ) • Gribskov, Faendriksvang ; 56°1.005′ N, 12°21.245′ E; UC30; 1–30 Aug. 2014; J. Heilmann-Clausen et al. 51; P. Jørum det.; ZMUC C-F-122526 .

Remarks

First record from Denmark. This is a very common species, and its presence in Denmark is not surprising.

Figures

Fig. 26. Laboulbenia spp. A. L. benjaminii Balazuc ex Santam. Mature thallus. – B–C. L. cafii Thaxt. B. Mature thallus. C. Submature thallus. – D. L. calathi. Mature thallus. Scale bars: 50 µm. Photographs from slides ZMUC C-F-122487 (A), ZMUC C-F-124213 (B–C), ZMUC C-F-122526 (D).

Fig. 104. Habitus of hosts with fungi. Some thalli are zoomed in, and others are encircled. A. Calathus melanocephalus with mature and immature thalli of Laboulbenia calathi on dorsal side of the elytra. B. Bradycellus csikii with thalli of Laboulbenia eubradycelli on various parts of the body. Scale bars: 1 mm. (Photos: Aslak Kappel Hansen).