Laboulbenia pedicellata Thaxt. MB#219334 Fig. 40C–H Proceedings of the American Academy of Arts and Sciences 27: 44 (Thaxter 1892). – Type: “ On Bembidium sp., Maine ”; FH. [USA] Laboulbenia gracilipes Cépède & F.Picard. (Cépède & Picard 1907: 780) [MB#182939] Laboulbenia gibbulosa Speg. (Spegazzini 1915b: 55) [MB#183213] Laboulbenia tapirina R.K.Benj. & Shanor (Benjamin & Shanor 1952: 126) [MB#299202] Diagnostic features Cell V variably oval, as long as cell IV, connected with septum III–IV. Outer appendage variably branched above the suprabasal cell; septa at the lower side in outer branch thick and dark, with blackened suffusion spreading through the dorsal margin (Fig. 40G, arrow). Inner appendage consisting of numerous branches bearing lateral solitary antheridia. Basal cell of inner appendage slightly shorter than basal cell of outer appendage. [Detailed descriptions: Thaxter 1896; Huldén 1985; Majewski 1994b; Santamaria 1998] Distribution and hosts Common on many species of the genus Bembidion in a broad sense, and on Dyschirius (Col. Carabidae). Occurrence on other hosts are likely wrong or require verification. Widespread, only unknown in Oceania (Santamaria et al. 1991; Majewski 2008). Recent records are from Denmark (Høier 2009), Switzerland (Hoess & Senn-Irlet 2009), Slovakia (Rossi et al. 2010), Sweden (Huggert 2010), the Netherlands (Haelewaters et al. 2012), Israel, Ecuador (Barragán et al. 2013), Bulgaria, Cyprus (Rossi et al. 2019a), Ukraine (Haelewaters et al. 2019b), and Cambodia (Kong et al. 2020). Collections examined from Denmark On Bembidion aeneum Germar, 1824 (Col. Carabidae) DENMARK – Lolland, Falster, Møn (LFM) • Resle Skov; 54°56.359′ N, 11°43.437′ E; PF79; 25 Sep. 2006; H. Liljehult 1461; JP det.; ZMUC C-F-124012. – Nordøstsjaelland (NEZ) • Eriksholm Skov; 55°41.771′ N, 11°47.912′ E; PG77; 4 Nov. 2017; JP 740; JP det.; ZMUC C-F-123234 • Nord for Frederikssund; 55°51.404′ N, 12°3.534′ E; UB17; 14 Dec. 2013; R. Aagaard Jensen 409; JP det.; ZMUC C-F-122893 • Nord for Risø; 55°42.184′ N, 12°6.692′ E; UB17; 14 Dec. 2013; R. Aagaard Jensen 628; JP det.; ZMUC C-F-123117. – Nordvestjylland (NWJ) • Nord for Landting ved Vinderup; 56°30.049′ N, 8°45.384′ E; MH86; 19 Jan. 2015; JP 573; JP det.; ZMUC C-F-123059 • Syd for Stårup; 56°34.792′ N, 9°5.958′ E; NH07; 6 Feb. 2015; K.B. Nielsen 218; JP det.; ZMUC C-F-122699 • Vest for Vinderup; 56°28.727′ N, 8°44.810′ E; MH85; 19 Jan. 2015; JP 779; JP det.; ZMUC C-F-123274. – Nordvestsjaelland (NWZ) • Bognaes Skov på Tuse Naes; 55°44.966′ N, 11°45.817′ E; PG78; 10 Dec. 2013; JP 873; JP det.; ZMUC C-F-123369 • ibid.; 30 Dec. 2013; K.B. Nielsen 30; JP det.; ZMUC C-F-122506. – Sydjylland (SJ) • Ballum Sluse; 55°7.866′ N, 8°41.125′ E; MG70; 26 Oct. 2017; H. Liljehult 872; JP det.; ZMUC C-F-123368. On Bembidion assimile Gyllenhal, 1810 (Col. Carabidae) DENMARK – Lolland, Falster, Møn (LFM) • Lysemose ved Maribo; 54°46.971′ N, 11°28.959′ E; PF57; 4 Jun. 2018; JP 1128; JP det.; ZMUC C-F-123651. – Nordøstsjaelland (NEZ) • Nordhavnstippen på Københavns Nordhavn; 55°43.091′ N, 12°37.088′ E; UB57; 29 Apr. 2018; JP 1092; JP det.; ZMUC C-F-123609 • Ud for Kongelundsfortet; 55°33.724′ N, 12°33.731′ E; UB46; 15 Apr. 2018; JP 1056; JP det.; ZMUC C-F-123573. – Sydsjaelland (SZ) • Gammel Kalvehave; 54°59.745′ N, 12°8.232′ E; UA19; 25 Apr. 2019; JP 1448; JP det.; ZMUC C-F-123996. On Bembidion biguttatum (Fabricius, 1779) (Col. Carabidae) DENMARK – Bornholm (B) • Skelsmyre i Rønne Plantage; 55°4.375′ N, 14°45.096′ E; VB80; 25 Apr. 2014; JP 508; JP det.; ZMUC C-F-122991. – Lolland, Falster, Møn (LFM) • Lysemose ved Maribo; 54°46.971′ N, 11°28.959′ E; PF57; 4 Jun. 2018; JP 1129; JP det.; ZMUC C-F-123652 • Nyord; 55°2.885′ N, 12°12.380′ E; UB20; 27 Apr. 2013; JP 837; JP det.; ZMUC C-F-123332 • Vest for Bandholm; 54°50.303′ N, 11°28.050′ E; PF57; 3 Jan. 2019; JP 1322; JP det.; ZMUC C-F-123858. – Nordøstsjaelland (NEZ) • Amager Faelled; 55°38.631′ N, 12°34.729′ E; UB47; 22 Apr. 2018; JP 1038; JP det.; ZMUC C-F-123554. – Sydsjaelland (SZ) • Østerskov ved Langebaek; 54°59.572′ N, 12°6.715′ E; UA19; 3 Jan. 2019; JP 1287; JP det.; ZMUC C-F-123819. On Bembidion doris (Panzer, 1796) (Col. Carabidae) DENMARK – Lolland, Falster, Møn (LFM) • Ravnsholt; 54°57.415′ N, 11°15.306′ E; PF49; 24 Aug. 2018; L. Kjaer-Thomsen 1176; JP det.; ZMUC C-F-123700 • Ulvshale; 55°3.218′ N, 12°15.801′ E; UB20; 10 Jun. 2017; JP 429; JP det.; ZMUC C-F-122914. – Nordøstsjaelland (NEZ) • Fruebjerg i Strøgårdsvang; 55°58.539′ N, 12°16.659′ E; UC30; 18 Oct. 2018; JP 1223; JP det.; ZMUC C-F-123750 • Indelukket ved Frederiksborg Slot; 55°56.191′ N, 12°17.861′ E; UC30; 12 Apr. 2016; JP 19; JP det.; ZMUC C-F-122492. On Bembidion gilvipes Sturm, 1825 (Col. Carabidae) DENMARK – Nordøstsjaelland (NEZ) • Stålmosen, Vindinge; 55°37.379′ N, 12°8.322′ E; UB16; 12 Apr. 1979; H.J. Petersen Dry0055; H.J. Petersen; ZMUC C-F-124121. – Sydsjaelland (SZ) • Østerskov ved Langebaek; 54°59.572′ N, 12°6.715′ E; UA19; 3 Jan. 2019; JP 1288; JP det.; ZMUC C-F-123820 • Tryggevaelde Å ved Varpelev; 55°21.055′ N, 12°15.877′ E; UB23; 6 Jan. 2018; JP 1589; JP det.; ZMUC C-F-124350. On Bembidion guttula (Fabricius, 1792) (Col. Carabidae) DENMARK – Nordøstsjaelland (NEZ) • Nord for Risø; 55°42.184′ N, 12°6.692′ E; UB17; 14 Dec. 2013; R. Aagaard Jensen 627; JP det.; ZMUC C-F-123116 • Syd for Veddelev; 55°40.346′ N, 12°4.915′ E; UB17; 14 Dec. 2013; R. Aagaard Jensen 333; JP det.; ZMUC C-F-122811. – Nordvestjylland (NWJ) • Nord for Landting ved Vinderup; 56°30.049′ N, 8°45.384′ E; MH86; 19 Jan. 2015; JP 574; JP det.; ZMUC C-F-123060 • Vest for Vinderup; 56°28.727′ N, 8°44.810′ E; MH85; 19 Jan. 2015; JP 777; JP det.; ZMUC C-F-123272. – Nordvestsjaelland (NWZ) • Flasken nord for Reersø; 55°31.965′ N, 11°9.831′ E; PG35; 26 Jan. 2014; JP 611; JP det.; ZMUC C-F-123099 • Halleby Å ved Bjerge Sydstrand; 55°33.194′ N, 11°10.079′ E; PG35; 24 Oct. 2018; JP 1211; JP det.; ZMUC C-F-123738. – Sydjylland (SJ) • Brede Ådal; 55°3.184′ N, 8°54.138′ E; MG90; 24 Oct. 2013; H. Liljehult 500; JP det.; ZMUC C-F-122984. – Sydsjaelland (SZ) • Even Bro; 55°8.694′ N, 12°0.601′ E; UB11; 17 Feb. 2019; JP 1370; JP det.; ZMUC C-F-123911 • Tryggevaelde Å ved Varpelev; 55°21.055′ N, 12°15.877′ E; UB23; 6 Jan. 2018; JP 967; JP det.; ZMUC C-F-123474. On Bembidion illigeri Netolitzky, 1914 (Col. Carabidae) DENMARK – Lolland, Falster, Møn (LFM) • Rødbyhavn; 54°39.072′ N, 11°21.809′ E; PF55; 4 Jun. 2018; JP 1120; JP det.; ZMUC C-F-123640. On Bembidion lunulatum (Geoffroy, 1785) (Col. Carabidae) DENMARK – Lolland, Falster, Møn (LFM) • Vest for Bandholm; 54°50.303′ N, 11°28.050′ E; PF57; 3 Jan. 2019; JP 1323; JP det.; ZMUC C-F-123859. – Nordøstsjaelland (NEZ) • Brønshøj (Degnemosen); 55°42.043′ N, 12°30.352′ E; UB47; 26 May 2016; JP 290; JP det.; ZMUC C-F-122769. On Bembidion mannerheimii Sahlberg, 1827 (Col. Carabidae) DENMARK – Fyn (F) • Gyldenstens inddaemmede Strand; 55°34.447′ N, 10°7.211′ E; NG75; 2 Apr. 2014; JP 710; JP det.; ZMUC C-F-123200 • Kohaveskov ved Landkildegård; 55°22.750′ N, 10°27.979′ E; NG93; 24 Aug. 2001; H. Liljehult 1398; JP det.; ZMUC C-F-123942, C-F-123944. – Lolland, Falster, Møn (LFM) • Krenkerup Haveskov; 54°46.408′ N, 11°39.955′ E; PF77; 23 Sep. 1993; S. Langemark & O.E. Meyer 893; JP det.; ZMUC C-F-123391 • Vest for Bandholm; 54°50.303′ N, 11°28.050′ E; PF57; 3 Jan. 2019; JP 1324; JP det.; ZMUC C-F-123863. – Nordøstjylland (NEJ) • Syd for Krogsagergård; 56°37.534′ N, 9°45.551′ E; NH47; 24 Nov. 2019; JP 1555; JP det.; ZMUC C-F-124316. – Nordøstsjaelland (NEZ) • Eriksholm Skov; 55°41.771′ N, 11°47.912′ E; PG77; 4 Nov. 2017; JP 741; JP det.; ZMUC C-F-123235. – Nordvestsjaelland (NWZ) • Vesterlyng; 55°44.195′ N, 11°17.276′ E; PG47; 9 Feb. 2014; JP 644; JP det.; ZMUC C-F-123132. – Sydsjaelland (SZ) • Gammel Kalvehave; 54°59.745′ N, 12°8.232′ E; UA19; 25 Apr. 2019; JP 1449; JP det.; ZMUC C-F-123999 • Østerskov ved Langebaek; 54°59.235′ N, 12°6.280′ E; UA19; 14 Jan. 2012; JP 546; JP det.; ZMUC C-F-123032. On Bembidion minimum (Fabricius, 1792) (Col. Carabidae) DENMARK – Nordøstsjaelland (NEZ) • Nord for Risø; 55°42.184′ N, 12°6.692′ E; UB17; 14 Dec. 2013; R. Aagaard Jensen 629; JP det.; ZMUC C-F-123118. – Vestjylland (WJ) • Sneum Sluse; 55°43.303′ N, 8°60.710′ E; MG74; 24 Mar. 2019; L. Kjaer-Thomsen & L. Thomas 1403; JP det.; ZMUC C-F-123949. On Bembidion normannum Dejean, 1831 (Col. Carabidae) DENMARK – Fyn (F) • Sprogø; 55°20.012′ N, 10°58.263′ E; PG23; 7 Sep. 2013; JP 213; JP det.; ZMUC C-F-122692. On Bembidion quadrimaculatum (Linnaeus, 1761) (Col. Carabidae) DENMARK – Fyn (F) • Gyldenstens inddaemmede Strand; 55°34.447′ N, 10°7.211′ E; NG75; 2 Apr. 2014; JP 711; JP det.; ZMUC C-F-123201. On Bembidion varium (Olivier, 1795) (Col. Carabidae) DENMARK – Lolland, Falster, Møn (LFM) • Ulvshale; 55°3.218′ N, 12°15.801′ E; UB20; 10 Jun. 2017; JP 430; JP det.; ZMUC C-F-122915. On Dyschirius globosus (Herbst, 1784) (Col. Carabidae) DENMARK – Fyn (F) • Gyldenstens inddaemmede Strand; 55°34.447′ N, 10°7.211′ E; NG75; 2Apr. 2014; JP 693; JP det.; ZMUC C-F-123181. – Lolland, Falster, Møn (LFM) • Busemarke Mose; 54°57.459′ N, 12°27.054′ E; UA39; 28 Aug. 2019; JP 1507; JP det.; ZMUC C-F-124094 • Lysemose ved Maribo; 54°46.971′ N, 11°28.959′ E; PF57; 4 Jun. 2018; JP 1127; JP det.; ZMUC C-F-123650 • Vest for Bandholm; 54°50.303′ N, 11°28.050′ E; PF57; 3 Jan. 2019; JP 1305; JP det.; ZMUC C-F-123840. – Nordøstjylland (NEJ) • Vandplasken ved Kaersgård Strand; 57°31.199′ N, 9°53.070′ E; NJ57; 21 Nov. 2017; JP 802; JP det.; ZMUC C-F-123297. – Nordøstsjaelland (NEZ) • Gurre Vang; 56°1.470′ N, 12°29.486′ E; UC41; 14 Apr. 2017; JP 269; JP det.; ZMUC C-F-122748 • Nord for Risø; 55°42.184′ N, 12°6.692′ E; UB17; 14 Dec. 2013; R. Aagaard Jensen 623; JP det.; ZMUC C-F-123112 • Ud for Kongelundsfortet; 55°33.724′ N, 12°33.731′ E; UB46; 15 Apr. 2018; JP 1054; JP det.; ZMUC C-F-123570. – Nordvestjylland (NWJ) • Syd for Stårup; 56°34.792′ N, 9°5.958′ E; NH07; 6 Feb. 2015; JP 215; JP det.; ZMUC C-F-122695 • Vest for Vinderup; 56°28.727′ N, 8°44.810′ E; MH85; 19 Jan. 2015; JP 769; JP det.; ZMUC C-F-123264. – Nordvestsjaelland (NWZ) • Flasken nord for Reersø; 55°31.965′ N, 11°9.831′ E; PG35; 26 Jan. 2014; JP 610; JP det.; ZMUC C-F-123098 • Flyndersø ved Dybesø; 55°58.151′ N, 11°45.621′ E; PH60; 4 Nov. 2017; JP 713; JP det.; ZMUC C-F-123205 • Nordbredden af Skarresø; 55°39.425′ N, 11°22.998′ E; PG47; 1 May 2013; JP 854; JP det.; ZMUC C-F-123349 • Nordøstbredden af Tissø; 55°35.612′ N, 11°18.461′ E; PG46; 1 May 2013; JP 756; JP det.; ZMUC C-F-123250. – Sydsjaelland (SZ) • Even Bro; 55°8.694′ N, 12°0.601′ E; UB11; 17 Feb. 2019; JP 1363; JP det.; ZMUC C-F-123901 • Gammel Kalvehave; 54°59.745′ N, 12°8.232′ E; UA19; 25 Apr. 2019; JP 1441; JP det.; ZMUC C-F-123989 • Østerskov ved Langebaek; 54°59.572′ N, 12°6.715′ E; UA19; 3 Jan. 2019; JP 1272; JP det.; ZMUC C-F-123802 • Tryggevaelde Å ved Varpelev; 55°21.055′ N, 12°15.877′ E; UB23; 6 Jan. 2018; JP 962; JP det.; ZMUC C-F-123469. On Dyschirius tristis Stephens, 1827 (Col. Carabidae) DENMARK – Nordøstsjaelland (NEZ) • Eriksholm Skov; 55°41.771′ N, 11°47.912′ E; PG77; 4 Nov. 2017; JP 743; JP det.; ZMUC C-F-123237. – Sydsjaelland (SZ) • Even Bro; 55°8.694′ N, 12°0.601′ E; UB11; 17 Feb. 2019; JP 1364; JP det.; ZMUC C-F-123903. Remarks This is a very variable and may be a collective species in need of a thorough revision (Haelewaters et al. 2019b). Attempts have been made to isolate some species with more or less luck (Benjamin & Shanor 1952; Santamaria et al. 2020a). An example of this may be L. tenera which was described on Bembidion dentellum (Thunberg, 1787) by Majewski (1994b) from Poland. It has been separated from L. pedicellata by several characters, especially related to the branching of outer appendage. We have found similar thalli to L. tenera on Bembidion aeneum (Fig. 40C). Distinguishing characteristics seem not to be very robust; furthermore, normal thalli of L. pedicellata have been found on the same host together with that tenera -like forms. This species gives the name to a morphologically related group of species that share some characteristics such as: IV and V cells of the same height, and the presence of at least a first constricted and dark septum in the outer appendage.

Published as part of Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, pp. 1-425 in European Journal of Taxonomy 781 on pages 190-194, DOI: 10.5852/ejt.2021.781.1583, http://zenodo.org/record/5828924