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Mycologia, 96(6), 2004, pp. 1355-1369.
© 2004 by The Mycological Society of America

New species and records of Laboulbeniales from the subantarctic islands of New Zealand


Monica Hughes 1
Alex Weir

     Faculty of Environmental and Forest Biology, 350 Illick Hall, 1 Forestry Drive, State University of New York College of Environmental Science and Forestry, Syracuse, New York 13210

Richard Leschen

     Landcare Research, Mount Albert Research Centre, Private Bag 92-170, Mount Albert, Auckland, New Zealand

Chris Judd
Ben Gillen

     Faculty of Environmental and Forest Biology, 350 Illick Hall, 1 Forestry Drive, State University of New York College of Environmental Science and Forestry, Syracuse, New York 13210

Until now Rhachomyces kenodactyli Balazuc & W. Rossi has been the only species of Laboulbeniales known to occur on Coleoptera in the Bounty, Antipodes, Auckland, Campbell and Snares Islands, which lie 48° to 35° S. Four new species (Diphymyces depressus, Diphymyces leschenii, Laboulbenia subantarctica and Laboulbenia loxomeri) and five new records for the subantarctic (Cucujomyces phycophilus, Diphymyces penicillifer, Laboulbenia sp. 1, Rhachomyces sp. 1 and Teratomyces sp. 1) are reported, increasing the known number of taxa tenfold. An expanded geographic range for Rhachomyces kenodactyli is reported. A relatively high percentage (12%) of known beetle species in the subantarctic serve as hosts for Laboulbeniales. This host utilization rate is higher than that in tropical and north temperate regions. The high proportion of intertidal coleopteran taxa in the subantarctic fauna probably accounts for the greater number of host species utilized. Fungi on intertidal beetles (Omaliinae [Staphylinidae], Oopterus [Carabidae] and Kenodactylus audouini [Carabidae]) are known from many host individuals and collections, while those on terrestrial species are known from few, and in some cases, a single collection or host. The sporadic occurrence of some species encountered increases the likelihood that a few species of Laboulbeniales on Coleoptera probably remain undiscovered in the region.

Key words: biodiversity, biogeography, fungal distributions, insect-associated fungi, systematics






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Copyright © 2004 by The Mycological Society of America.