Peyritschiella princeps (Thaxt.) I.I.Tav.

MB#105655

Fig. 69A–C

Mycologia Memoirs 9: 269 (Tavares 1985). – Basionym: Dichomyces princeps Thaxt., Proceedings of the American Academy of Arts and Sciences 30: 479 (Thaxter 1895) [MB#146013]. –

Type: “ On Philonthus sordidus Grav. Massachusetts ”; FH. [USA]

Diagnostic features

Thallus symmetrical, up to 350 µm long, with middle and upper tiers of cells of similar width. Uniformly yellowish-brown, sometimes slightly darkened at the margins of the lower tier of cells. Two perithecia for each thallus, on the upper tier; auricles absent. [Detailed descriptions: Thaxter 1896; Sugiyama 1972; Santamaria 1989; Majewski 1994b]

Distribution and hosts

Peyritschiella princeps is known from Europe (Belgium, Finland, France, Germany, the Netherlands, Italy, Poland, Spain), Africa (Algeria, Sierra Leone), Madeira, America (Argentina, Mexico, Peru, USA), Asia (India, Korea), and Australia (Santamaria et al. 1991). Also from Czech Republic (Rossi & Máca 2006), Sweden (Huggert 2010), and Indonesia (Haelewaters & Yaakop 2014). It occurs on species of the genus Philonthus and related genera like Spatulonthus, Quediomacrus Sharp, 1884 and Bisnius (Col. Staphylinidae Staphylininae).

Collections examined from Denmark

On Bisnius cephalotes (Gravenhorst, 1802) (Col. Staphylinidae Staphylininae) DENMARK – Østjylland (EJ) • Hampen Plantage; 56°1.561′ N, 9°22.546′ E; NH20; 6 Oct. 2019; JP 1525; JP det.; ZMUC C-F-124280 • Kjellerup; 56°17.644′ N, 9°25.850′ E; NH23; 18 Nov. 2017; JP 821; JP det.; ZMUC C-F-123315 . – Sydjylland (SJ) • Havnen i Åbenrå; 55°2.479′ N, 9°25.429′ E; NF29; 27 Sep. 2009; JP 60; JP det.; ZMUC C-F-122535 .

On Bisnius parcus (Sharp, 1874) (Col. Staphylinidae Staphylininae) DENMARK – Sydjylland (SJ) • Havnen i Åbenrå; 55°2.479′ N, 9°25.429′ E; NF29; 27 Sep. 2009; JP 61; JP det.; ZMUC C-F-122536 .

On Bisnius sordidus (Gravenhorst, 1802) (Col. Staphylinidae Staphylininae) DENMARK – Nordøstsjaelland (NEZ) • Bispebjerg; 55°43.063′ N, 12°31.288′ E; UB47; 3 Nov. 2019; JP 1542; JP det.; ZMUC C-F-124302 .

On Bisnius subuliformis (Gravenhorst, 1802) (Col. Staphylinidae Staphylininae) DENMARK – Sydjylland (SJ) • Havnen i Åbenrå; 55°2.479′ N, 9°25.429′ E; NF29; 27 Sep. 2009; JP 63; JP det.; ZMUC C-F-122540 .

On Philonthus politus (Linnaeus, 1758) (Col. Staphylinidae Staphylininae) DENMARK – Nordøstsjaelland (NEZ) • Husum; 55°42.851′ N, 12°29.061′ E; UB47; 6 Oct. 2018; JP 1200; JP det.; ZMUC C-F-123726 .

Remarks

First record from Denmark. Only slightly variable regarding the darkening of the lower tier of cells, from totally pale (Fig. 69C) to darker (Fig. 69B), through intermediate forms (Fig. 69A).