Stigmatomyces burdigalensis (Balazuc) A.Weir & W.Rossi

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 252-253

Stigmatomyces burdigalensis (Balazuc) A.Weir & W.Rossi

MB#414204

Fig. 56A–D

Mycological Research 99: 843 ( Weir & Rossi 1995). – Basionym: Fanniomyces burdigalensis Balazuc, Revue de Mycologie 43 (4): 402 ( Balazuc 1979) [MB#314066]. –

Type: “ Parasitus Sphaerocerae (Apterinae)pedestris (Meigen) ( Diptera, Cyclorhapha, Drosophiloidea , Sphaeroceridae ) in Aquitania. Typus in auctoris musaeo. [Deux exemplaires sur le sommet de la tête d’un Sphaerocera pedestris (Meigen) (Diptères Cyclorhaphes Drosophiloidea Sphaeroceridae ) des marais de Parempuyre (Gironde), à 10 Km au nord de Bordeaux , 6 au 15-IV-1978, G. Tempere leg.]”; PC. [ France]

Fanniomyces copromyzae Huldén ( Huldén 1983: 50) [MB#107967]

Diagnostic features

Axis of the appendage long, consisting of a dark basal cell and five superposed, sympodial arranged cells, each giving rise to short branchlets bearing flask-shaped antheridia ( Fig. 56C ). Perithecial neck well-distinguished, with slightly undulate margins and a conical tip ( Fig. 56D ). [Detailed description: De Kesel & Hanssens 2007]

Distribution and hosts

Infects flies of the genera Sphaerocera Latreille, 1804 , Crumomyia Macquart, 1835 , and Copromyza Duda, 1923 ( Diptera Sphaeroceridae ). Recorded from France (type), Finland (type of Fanniomyces copromyzae , Huldén 1983), United Kingdom ( Weir & Rossi 1995), Belgium ( De Kesel & Hanssens 2007), Czech Republic ( Rossi et al. 2010), and Portugal ( Goldmann & Weir 2018).

Collections examined from Denmark

On Copromyza stercoraria (Meigen, 1830) ( Diptera Sphaeroceridae ) DENMARK – Fyn (F) • Gyldenstens inddaemmede Strand ; 55°34.447′ N, 10°7.211′ E; NG75; 2 Apr. 2014; JP 1188; W. Gritsch det.; ZMUC C-F-123712 . – Lolland, Falster, Møn (LFM) • Hydeskov ; 54°46.344′ N, 11°42.799′ E; PF77; 21 Aug. 1964; N. M. Andersen Dry0003; V. Michelsen det.; ZMUC C-F-124016 . – Nordøstjylland (NEJ) • Knarmod i Tofte Skov ; 56°51.824′ N, 10°15.470′ E; NJ70; 8–22 Aug. 2013; I. Aggerholm 1187; W. Gritsch det.; ZMUC C-F-123711 • ibid.; 19 Sep.–2 Oct. 2013; I. Aggerholm 1186; W. Gritsch det.; ZMUC C-F-123710 • Uggerby Plantage ; 57°35.000′ N, 10°5.000′ E; NJ68; 25 Jul. 1990; T. Munk Dry0002; V. Michelsen det.; ZMUC C-F-124015 . – Nordøstsjaelland (NEZ) • Pinseskoven ; 55°35.839′ N, 12°33.250′ E; UB46; 6–20 May 2017; W. Gritsch 1185; W. Gritsch det.; ZMUC C-F-123709 .

On Crumomyia fimetarii (Meigen, 1830) ( Diptera Sphaeroceridae ) DENMARK – Nordøstsjaelland (NEZ) • Pinseskoven ; 55°35.839′ N, 12°33.250′ E; UB46; 7–23 May 2016; W. Gritsch 1183; W. Gritsch det.; ZMUC C-F-123707 .

On Crumomyia glabrifrons (Meigen, 1830) ( Diptera Sphaeroceridae ) DENMARK – Østjylland (EJ) • Kolding ; 55°28.892′ N, 9°26.998′ E; NG24; 16 Aug. 1981; E. Frandsen Dry0001; V. Michelsen det.; ZMUC C-F-124014 .

On Crumomyia pedestris (Meigen, 1830) ( Diptera Sphaeroceridae ) DENMARK – Sydsjaelland (SZ) • Denderup Sø i Denderup Vaenge ; 55°15.075′ N, 11°57.366′ E; PG82; 5 May 2016; JP 1184; W. Gritsch det.; ZMUC C-F-123708 .

Remarks

A record of this fungus from Denmark has appeared in a web page ( Ahlburg 2011), with photographs of a Crumomyia notabilis (Collin, 1902) infested with the fungus which was identified by Dr Walter Rossi (Univ. L’Aquila, Italy).

Figures

Fig. 56. Stigmatomyces spp. A–D. S. burdigalensis (Balazuc) A.Weir & W.Rossi. A–B. Mature thalli showing labelled cells I, II, III, VI, and basal cell of primary appendage (bc a). C. Primary appendage in detail from an immature thallus. D. Perithecial apex in detail showing slightly undulate margins and a conical tip. – E–G. S. constrictus Thaxt. Mature thalli. Surface of basal cell I appears characteristically striated (arrows in E and G). Scale bars: 50 µm. Photographs from slides ZMUC C-F-123707 (A–D), ZMUC C-F-124084 (E–G).