Laboulbenia aubryi Balazuc

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 130

Laboulbenia aubryi Balazuc

MB#316110

Figs 25C–D , 103B

Revue de Mycologie 43 (4): 393 ( Balazuc 1979). –

Type: “ Sur Cyrtonotus (Leironotus) rotundicollis (Schauf.) (Col. Carabidae Pterostichinae Amarini), de la Sierra de la Demanda , province de Logroño, Espagne (J. Aubry leg., X–1976) [No. 37.78, type, according to Santamaria 1998: 41]”; PC. [ Spain]

Diagnostic features

Cell V oval, about half the length of cell IV, not connected with cell III; its inner margin separated from perithecium at least in its distal portion. Insertion cell separated from perithecium. Outer appendage unbranched, up to 650 µm long. Inner appendage consisting of a small basal cell supporting two simple or once ramified branches bearing pairs or clusters of antheridia; sometimes including variable and rather elongated sterile branches. [Detailed descriptions: Santamaria 1998; Majewski 1999]

Distribution and hosts

On ground beetles of the genus Amara (= Leironotus Ganglbauer, 1891). Described from Spain and reported from India and Nepal ( Santamaria et al. 1991), as well as from Poland ( Majewski 1999) and Belgium ( Haelewaters & De Kesel 2020) from Amara . The record on Agonum from United Kingdom (Weir 1996) lacks iconography and requires confirmation.

Collections examined from Denmark

On Amara municipalis (Duftschmid, 1812) (Col. Carabidae )

DENMARK – Nordøstsjaelland (NEZ) • Nordøst for Bispebjerg Station ; 55°42.508′ N, 12°32.786′ E; UB47; 18 Aug. 2016; JP 115; JP det.; ZMUC C-F-122592 .

Remarks

First record from Denmark. The finding of this species in Denmark on Amara is not surprising because it also was found in neighbouring Poland on the same host.

Figures

Fig. 25. Laboulbenia spp. A–B. L. argutoris Cépède & F.Picard. A. Mature thallus. B. Inner appendage in detail. – C–D. L. aubryi Balazuc. C. Inner appendage and area around insertion cell in detail. D. Mature thallus. Scale bars: 50 µm. Photographs from slides ZMUC C-F-122696 (A), ZMUC C-F-123050 (B), ZMUC C-F-122592 (C–D).

Fig. 103. Habitus of hosts with fungi. Some thalli are zoomed in, and others are encircled. A. Dyschirius salinus with thalli of Misgomyces dyschirii on various parts of the pronotum. B. Amara municipalis with a few mature thalli of Laboulbenia aubryi on left side of the elytra and many immature on the elytral apices. Scale bars: 1 mm. (Photos: Aslak Kappel Hansen).