Euphoriomyces agathidii (Maire) I.I.Tav.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 53-54

Euphoriomyces agathidii (Maire) I.I.Tav.

MB#105308

Fig. 8A

Mycologia Memoirs 9: 218 ( Tavares 1985). – Basionym: Ecteinomyces agathidii Maire , Bulletin de la Société d’Histoire Naturelle de l’Afrique du Nord 11(8): 156 ( Maire 1920) [MB#183944]. – Asaphomyces agathidii (Maire) Scheloske (1969: 92) [MB#326502]. –

Type: [Type lost?!] “ En fascicules apprimés sur les élytres d’ Agathidium laevigatum Er. , M. Rabat, 1918 (Théry in coll. Peyerimhoff)”. [ Morocco]

Diagnostic features

Thalli up to 150 µm long from foot to apex of furthest perithecia. Receptacle consisting of 4–8 superposed cells, dividing bilaterally into secondary appendages or perithecia. Perithecia stout, less than three times long than broad. [Detailed descriptions: Scheloske 1969; Santamaria 1991, 2003; Majewski 1994b]

Distribution and hosts

Occurs on Agathidium , Amphicyllis and Cyrtusa (Col. Leiodidae ). Known from Morocco (type), Spain, Germany, Poland, Sweden ( Majewski 2008), South Korea ( Lee et al. 2007), Russia ( Huldén 1983), Bulgaria, Italy ( Rossi et al. 2019a), Czech Republic ( Rossi et al. 2019b) and the Netherlands ( Haelewaters & De Kesel 2020).

Collections examined from Denmark

On Agathidium convexum Sharp, 1866 (Col. Leiodidae )

DENMARK – Østjylland (EJ) • Mols ; 56°13.340′ N, 10°33.441′ E; NH93; 25 Aug. 1940; Johs. Andersen DrY0169; Johs.Andersen det.; ZMUC C-F-124235 • Rye Nørreskov ; 56°6.065′ N, 9°41.814′ E; NH41; ca 1870; Schiødte Dry0172; Schiødte det.; ZMUC C-F-124238 . – Nordøstjylland (NEJ) • Lundby Bakker ; 56°59.043′ N, 9°59.874′ E; NJ61; Sep. 1887; J.P. Johansen Dry0171; J.P. Johansen det.; ZMUC C-F-124237 . – Vestjylland (WJ) • Esbjerg Strandskov ; 55°29.094′ N, 8°25.956′ E; MG64; 24 Nov. 1928; A. West Dry0170; A. West det.; ZMUC C-F-124236 .

On Agathidium laevigatum Erichson, 1845 (Col. Leiodidae )

DENMARK – Nordøstjylland (NEJ) • Restrup ; 57°0.308′ N, 9°46.586′ E; NJ41; Jul. 1890; J.P. Johansen Dry0173; J.P. Johansen det.; ZMUC C-F-124239 . – Nordøstsjaelland (NEZ) • Tisvilde ; 56°3.629′ N, 12°5.777′ E; UC11; 3 Aug. 1886; N.P. Jørgensen Dry0174; N.P. Jørgensen det.; ZMUC C-F-124240 .

On Agathidium rotundatum (Gyllenhal, 1827) (Col. Leiodidae )

DENMARK – Lolland, Falster, Møn (LFM) • Østerskoven ; 54°50.689′ N, 12°8.811′ E; UA18; 6 Jul. 1935; Johs. Andersen Dry0175; Johs. Andersen det.; ZMUC C-F-124241 . – Nordøstjylland (NEJ) • Hals Nørreskov ; 57°2.012′ N, 10°15.653′ E; NJ72; 15 Jun. 1932; A. West Dry0178; A. West det.; ZMUC C-F-124244 • Høstemark Skov ; 56°56.064′ N, 10°13.758′ E; NJ71; 12 May 1990; V. Mahler Dry0177; V. Mahler det.; ZMUC C-F-124243 • Lerbaek Skov, Vendsyssel ; 57°5.505′ N, 10°0.219′ E; NJ62; 7 Apr. ca 1870; SchiØdte DrY0176; Schiødte det.; ZMUC C-F-124242 • Rold Skov ; 56°48.933′ N, 9°50.218′ E; NH59; 1–30 Jun. 2017; J. Heilmann-Clausen et al. 1141; A.K. Hansen det.; ZMUC C-F-123664 .

On Agathidium varians Beck, 1817 (Col. Leiodidae )

DENMARK – Lolland, Falster, Møn (LFM) • Roden Skov ; 54°40.539′ N, 11°49.087′ E; PF86; 5 Sep. 1883; N.P. Jørgensen Dry0179; N.P. Jørgensen det.; ZMUC C-F-124245 .

Remarks

First record from Denmark. Distinctiveness of the three species of Euphoriomyces described on beetles of the genus Agathidium ( E. agathidii , E. bilateralis and E. unilateralis ) was analyzed by Rossi et al. (2019a). Euphoriomyces agathidii and E. unilateralis seem to be well-separable because the latter only bears secondary appendages and perithecia on the same side of the thallus. The presence of Euphoriomyces bilateralis in Europe and its distinctiveness from E. agathidii is questionable; it was described from Sumatra ( Thaxter 1931) but the later Spanish record (Santamaria 1991) probably belongs to E. agathidii .

Figures

Fig. 8. Euphoriomyces spp. A. E. agathidii (Maire) I.I.Tav. Paired mature thalli. – B–F. E. enghoffii Santam. sp. nov. B. The peduncle of primary appendage is labelled (*). F. Brown basis of appendages are pointed with arrows. Abbreviations: a = primary septum; a = antheridia; pa = primary appendage; sa = secondary appendage; VI = cell VI. Scale bars: 50 µm. Photographs from slides ZMUC C-F-124241 (A), ZMUC C-F-124142 (holotype) (B–C), and ZMUC C-F-124143 (D–F).