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Phylogeny, classification, Mesozoic fossils, and biogeography of the Leiinae (Diptera: Mycetophilidae). (Bulletin of the American Museum of Natural History, no. 446)

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dc.contributor.author Oliveira, Sarah Siqueira
dc.contributor.author Amorim, Dalton de Souza
dc.date.accessioned 2021-03-16T12:26:28Z
dc.date.available 2021-03-16T12:26:28Z
dc.date.issued 2021-03-16
dc.identifier.uri http://digitallibrary.amnh.org/handle/2246/7256
dc.description 108 pages : color illustrations ; 26 cm. en_US
dc.description.abstract The relationships among the genera of fungus gnats in the mycetophilid subfamily Leiinae are unclear, and the monophyly of this group is questionable. This monograph provides an extensive phylogenetic study of theLeiinae based on morphological data from a large taxonomic sample, including all genera that have ever been assigned to the subfamily and a wide outgroup sampling to properly test subfamilial monophyly. A data matrix with 128 morphological features of 117 terminal taxa was carried out under parsimony using different implicit weight schemes. All recovered topologies support a monophyletic Leiinae that is more restricted than the usual delimitation of the subfamily. We found no consistent evidence that a clade with Docosia Winnertz, Novakia Strobl, Ectrepesthoneura Enderlein, and Tetragoneura Winnertz group together with the remaining genera of Leiinae. A name with subfamily rank--Tetragoneurinae, already present in the literature--is used here to refer to this group. The allactoneurine genera Sticholeia Søli and Allactoneurade Meijere form a clade with the leiine genus Leiella and the genera of Manotinae, which is deeply nested within the Leiinae. The male terminalia patterns found within the subfamily are analyzed and illustrated. A classification for the Leiinae is proposed grouping 33 genera in seven clades ranked as tribes: Selkirkiini Enderlein, Megophthalmidiini, trib. nov., Rondaniellini, trib. nov., Cycloneurini Shaw and Shaw, Manotini Edwards, Anomalomyiini, trib. nov., and Leiini Edwards. A key for the world genera of Leiinae is also provided. The Cretaceous mycetophilid fossil record is revisited and the biogeographic evolution of the Leiinae is discussed. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation
dc.relation.ispartofseries Bulletin of the American Museum of Natural History;no.446
dc.subject Leiinae -- Phylogeny. en_US
dc.subject Mycetophilidae -- Phylogeny. en_US
dc.subject Gnats -- Phylogeny. en_US
dc.subject Insects -- Phylogeny. en_US
dc.title Phylogeny, classification, Mesozoic fossils, and biogeography of the Leiinae (Diptera: Mycetophilidae). (Bulletin of the American Museum of Natural History, no. 446) en_US
dc.title.alternative Leiinae (Diptera: Mycetophilidae) en_US
dc.type Book en_US


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  • Bulletin of the American Museum of Natural History
    The Bulletin, published continuously since 1881, consists of longer monographic volumes in the field of natural sciences relating to zoology, paleontology, and geology. Current numbers are published at irregular intervals. The Bulletin was originally a place to publish short papers, while longer works appeared in the Memoirs. However, in the 1920s, the Memoirs ceased and the Bulletin series began publishing longer papers. A new series, the Novitates , published short papers describing new forms.

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