Euzodiomyces lathrobii Thaxt.

MB#210799

Fig. 4A–D

Proceedings of the American Academy of Arts and Sciences 35: 449 (Thaxter 1900). –

Type: [Not designated] [Ind. loc.] “ On Lathrobium punctatum Zett., British Museum No. 442, Notting Hill, England; on L. multipunctatum Grev., British Museum No. 429, Europe; on L. filiforme Grav. British Museum No. 443, Notting Hill, England ”; FH. [According to Majewski, 1994: 51, the type is on Lathrobium zetterstedti Rye]

Euzodiomyces capillarius Cépède & F.Picard (Cépède & Picard 1907: 782) [MB#203735]

Diagnostic features

See genus description. [Detailed descriptions: Thaxter 1908; Benjamin & Shanor 1951; Sugiyama 1973; Majewski 1994b; Santamaria 2003]

Distribution and hosts

Usually found on species of Lathrobium and Lobrathium (Col. Staphylinidae Paederinae), less commonly on other staphylinids like Hom(a)eotarsus Hochhuth, 1851 (Benjamin & Shanor 1951), Xantholinus Dejean, 1821 (Scheloske 1969, probably Megalinus Mulsant & Rey, 1877 according to Tavares 1985), Pseudolathra Casey, 1905 (Rossi 1975); maybe fortuitously on Col. Carabidae like Patrobus Dejean, 1821 (Scheloske 1969) and Pterostichus Bonelli, 1810 (De Kesel & Gerstmans 2011). Widespread in Europe (United Kingdom, France, Switzerland, the Netherlands, Belgium, Germany, former Yugoslavia, Poland, Italy, Finland, Hungary, Spain, Latvia), Africa (Algeria, Morocco), Asia (Japan), North and South America (USA, Bolivia) (Majewski 2008). Recently reported also from Czech Republic (Rossi et al. 2010), Sweden (Huggert 2010), Ecuador (Bernardi et al. 2014), Greece (Goldmann & Weir 2018), and Bulgaria (Rossi et al. 2019a).

Collections examined from Denmark

On Lathrobium brunnipes (Fabricius, 1792) (Col. Staphylinidae Paederinae)

DENMARK – Bornholm (B) • Svartingedalen ved Baggeå; 55°11.740′ N, 14 45.260′ E; VB81; 23 Jun. 2018; JP 1156; JP det.; ZMUC C-F-123681 . – Lolland, Falster, Møn (LFM) • Lysemose ved Maribo; 54°46.971′ N, 11°28.959′ E; PF57; 7 May 2017; JP 648; JP det.; ZMUC C-F-123136 . – Nordøstsjaelland (NEZ) • Indelukket ved Frederiksborg Slot; 55°56.191′ N, 12°17.861′ E; UC30; 12 Apr. 2016; JP 7; JP det.; ZMUC C-F-122479 • Skodsborg Dam i Jaegersborg Hegn; 55°49.068′ N, 12°33.937′ E; UB48; 18 Nov. 2018; JP 1243; JP det.; ZMUC C-F-123771 . – Sydsjaelland (SZ) • Krobaek i Sjolte Skov; 55°10.772′ N, 12°0.863′ E; UB11; 17 Feb. 2019; JP 1380; JP det.; ZMUC C-F-123922 • Rådmandshave i Naestved; 55°14.426′ N, 11°45.240′ E; PG73; 1 Sep. 2019; JP 1481; A.K. Hansen det.; ZMUC C-F-124066 .

On Lathrobium elongatum (Linnaeus, 1767) (Col. Staphylinidae Paederinae)

DENMARK – Lolland, Falster, Møn (LFM) • Lysemose ved Maribo; 54°46.971′ N, 11°28.959′ E; PF57; 7 May 2017; JP 649; JP det.; ZMUC C-F-123138 • Vest for Bandholm; 54°50.303′ N, 11°28.050′ E; PF57; 3 Jan. 2019; JP 1333; JP det.; ZMUC C-F-123872 . – Nordøstsjaelland (NEZ) • Gurre Vang; 56°1.470′ N, 12°29.486′ E; UC41; 14 Apr. 2017; JP 272; JP det.; ZMUC C-F-122751 • Indelukket ved Frederiksborg Slot; 55°56.191′ N, 12°17.861′ E; UC30; 12 Apr. 2016; JP 8; JP det.; ZMUC C-F-122480 .

On Lathrobium geminum Kraatz, 1857 (Col. Staphylinidae Paederinae)

DENMARK – Nordvestsjaelland (NWZ) • Sonnerup Skov; 55°56.525′ N, 11°33.988′ E; PH60; 1 Apr. 2017; JP 258; JP det.; ZMUC C-F-122738. – Sydsjaelland (SZ) • Krobaek i Sjolte Skov; 55°10.772′ N, 12°0.863′ E; UB11; 17 Feb. 2019; JP 1381; JP det.; ZMUC C-F-123923 .

On Lathrobium impressum Heer, 1841 (Col. Staphylinidae Paederinae)

DENMARK – Bornholm (B) • Skelsmyre i Rønne Plantage; 55°4.375′ N, 14 45.096′ E; VB80; 25 Apr. 2014; JP 503; JP det.; ZMUC C-F-122987 . – Lolland, Falster, Møn (LFM) • Lysemose ved Maribo; 54°46.971′ N, 11°28.959′ E; PF57; 7 May 2017; JP 650; JP det.; ZMUC C-F-123139 .

On Lathrobium lineatocolle Scriba, 1859 (Col. Staphylinidae Paederinae)

DENMARK – Sydsjaelland (SZ) • Krobaek i Sjolte Skov; 55°10.772′ N, 12°0.863′ E; UB11; 17 Feb. 2019; JP 1382; JP det.; ZMUC C-F-123924 .

On Lathrobium longulum Gravenhorst, 1802 (Col. Staphylinidae Paederinae)

DENMARK – Nordvestjylland (NWJ) • Nord for Landting ved Vinderup; 56°30.049′ N, 8°45.384′ E; MH86; 19 Jan. 2015; JP 559; JP det.; ZMUC C-F-123045 • Vest for Vinderup; 56°28.727′ N, 8°44.810′ E; MH85; 19 Jan. 2015; JP 766; JP det.; ZMUC C-F-123260 . – Sydsjaelland (SZ) • Even Bro; 55°8.694′ N, 12°0.601′ E; UB11; 17 Feb. 2019; JP 1359; JP det.; ZMUC C-F-123897 • Gammel Kalvehave; 54°59.745′ N, 12°8.232′ E; UA19; 9 Nov. 2019; JP 1543; JP det.; ZMUC C-F-124303 • Østerskov ved Langebaek; 54°59.331′ N, 12°6.357′ E; UA19; 27 Mar. 2018; JP 1019; JP det.; ZMUC C-F-123526 • ibid.; 54°59.572′ N, 12°6.715′ E; UA19; 3 Jan. 2019; JP 1299; JP det.; ZMUC C-F-123832 .

Remarks

First record from Denmark. Very variable in receptacle length and width, as well as in the number of appendages and perithecia, from one perithecium on narrow long (Fig. 4A), or narrow short (Fig. 4B) receptacles, to large and broad thalli bearing numerous perithecia (Fig. 4C). There is no relation between these thallus shapes and different species of Lathrobium, although at least part of the variation seems to be geographical. Further studies with more modern integrative taxonomical techniques should be carried out to reveal if there is more than one species in the genus. Antheridia simple, grouped by 2 on a short simple branchlet supported by cell VII as is seen in Fig. 4D (an, VII).