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Madagacerina, a new genus of Leptoceridae (Trichoptera) from Madagascar
Stockholms universitet, Naturvetenskapliga fakulteten, Zoologiska institutionen. Stockholms universitet, Naturvetenskapliga fakulteten, Zoologiska institutionen, Avdelningen för zoologisk systematik och evolutionsforskning.
Naturhistoriska Riksmuseet, Enheten för Entomologi.
(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Abstract [en]

The caddisfly genus Madagacerina, new genus (Trichoptera: Leptoceridae) is described for the Madagascaran species Madagacerina forcipata, new species. The genus is characterised by having the tibial spur formula 2, 2, 2; wings with sessile bifurcation of M; genitalia with preanal appendages fused with segment IX and greatly produced posterad, and a tergum X with an anteriorly extended ventral base articulating with a sclerotised spine-like process of the phallic shield. The new genus is most closely related to Blyzophilus, and placed in the tribe Blyzophilini. With this generic addition, the Madagascaran Leptoceridae fauna includes 8 genera.

Nyckelord [en]
Leptocerinae; Blyzophilini; Madagacerina; forcipata; new genus; new species
Nationell ämneskategori
Biologisk systematik
Forskningsämne
zoologisk systematik och evolutionsforskning
Identifikatorer
URN: urn:nbn:se:su:diva-38568OAI: oai:DiVA.org:su-38568DiVA, id: diva2:310960
Tillgänglig från: 2010-04-19 Skapad: 2010-04-19 Senast uppdaterad: 2010-04-19Bibliografiskt granskad
Ingår i avhandling
1. Climbing the Trichoptera Tree: Investigations of Branches and Leaves
Öppna denna publikation i ny flik eller fönster >>Climbing the Trichoptera Tree: Investigations of Branches and Leaves
2010 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

The Trichoptera (caddisflies) is the largest of the primary aquatic insect orders, currently including more than 13,500 species. With more than 100 species new to science described annually, the known caddisfly diversity is rapidly increasing. In the first four papers of this Thesis, a total of 22 species new to science are described. The first three papers include revisions of the New Caledonian species for the genera Symphitoneuria, Gracilipsodes and Triplectides, with descriptions of 3, 7 and 11 new species, respectively. In these papers I strengthen our image of New Caledonia as a biodiversity hotspot. The fourth paper describes a new genus and species from Madagascar, another biodiversity hotspot. These four papers all deal with species and genera of the family Leptoceridae, which ranks among the three largest families within Trichoptera. The family comprises high species diversity together with a widespread distribution and has been of interest to many trichopterologists. However, the classification used for genera and tribes within the family follows a phylogenetic hypothesis from 1981. In paper V I apply a molecular approach for hypothesising phylogenetic relationships within the family, revealing support for the erection of two tribes to subfamily level and for the synonymisations of 2 pairs of genera. At order level, the progress of illuminating the evolutionary history of Trichoptera is advancing with recent analyses using molecular based data. Previously published phylogenetic hypotheses of the order were to a large degree dependent on ribosomal DNA, a source of molecular data not without its controversies, particularly regarding alignment procedures. Paper VI presents Trichoptera phylogenies based on sequences of protein-coding nuclear and mitochondrial genes. My results correspond well to previously published hypotheses among suborder relationships, but show additional and contrasting resolution within suborders.

Ort, förlag, år, upplaga, sidor
Stockholm: Department of Zoology, Stockholm University, 2010. s. 26
Nyckelord
Trichoptera, Leptoceridae, Symphitoneuria, Gracilipsodes, Triplectides, morphology, DNA, systematics, phylogeny, New Caledonia, Madagascar, new species, new genus
Nationell ämneskategori
Biologisk systematik
Forskningsämne
zoologisk systematik och evolutionsforskning
Identifikatorer
urn:nbn:se:su:diva-38583 (URN)978-91-7447-033-8 (ISBN)
Disputation
2010-05-21, Lilla Hörsalen, Naturhistoriska riksmuseet, Frescativägen 40, Stockholm, 13:00 (Engelska)
Opponent
Handledare
Anmärkning
At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 4: Manuscript. Paper 5: Manuscript. Paper 6: Manuscript.Tillgänglig från: 2010-04-28 Skapad: 2010-04-19 Senast uppdaterad: 2010-04-21Bibliografiskt granskad

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Malm, Tobias
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Zoologiska institutionenAvdelningen för zoologisk systematik och evolutionsforskning
Biologisk systematik

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