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Masters Theses

Phylogeny

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Full-Text Articles in Entomology

Phylogenetic Analysis And Revision Of The Nearctic Androprosopa Mik (Diptera: Thaumaleidae) With An Emphasis On The Western Species, Robert John Pivar Dec 2015

Phylogenetic Analysis And Revision Of The Nearctic Androprosopa Mik (Diptera: Thaumaleidae) With An Emphasis On The Western Species, Robert John Pivar

Masters Theses

The family Thaumaleidae, also known as seepage midges, is an uncommonly encountered, understudied family of aquatic Diptera compared to its sister group, the Simuliidae. The goal of this project was to assess species diversity of the Nearctic Thaumaleidae and determine relationships among them. The western Nearctic fauna of Androprosopa Mik is revised to include twenty-eight species, six of which are described as new to science. Descriptions of the adult males of A. apache, A. arnaudi, A. magnipelvim, A. rainierensis, A. sierra and A. uvas are provided. Redescriptions of all remaining species are also provided, as well …


A Molecular And Morphological Investigation Of The Springtail Genus Orchesella (Collembola: Entomobryomorpha: Entomobryidae), Catherine Louise Smith May 2015

A Molecular And Morphological Investigation Of The Springtail Genus Orchesella (Collembola: Entomobryomorpha: Entomobryidae), Catherine Louise Smith

Masters Theses

Chapter 1 is devoted to a molecular overview of the North American members of the springtail genus Orchesella using mitochondrial and nuclear DNA. Both genes strongly support the presence of four major clades within Orchesella. Chapter 2 is a morphological revision of the species near Orchesella celsa Christiansen & Bellinger. Five new species are described based largely on chaetotaxonomical differences in. Chapter 3 is an investigation into the origins of United States populations of two introduced European members of the genus, Orchesella cincta Linnaeus and Orchesella villosa Linnaeus. Mitochondrial data between populations from the two continents indicates multiple introductions for …