Phylogenetic analysis and taxonomic revision of the neotropical genus Argentinomyia Lynch Arribálzaga, 1891 (Diptera: Syrphidae)

dc.contributor.advisor Acosta-Martínez, Jaime A. Montoya-Giraldo, Augusto L. College of Arts and Sciences - Sciences en_US
dc.contributor.committee Cafaro, Matías J.
dc.contributor.committee Franz, Nico M.
dc.contributor.department Department of Biology en_US
dc.contributor.representative Vieta, Rene S. 2018-01-26T18:21:13Z 2018-01-26T18:21:13Z 2012
dc.description.abstract The genus Argentinomyia Lynch Arribálzaga, 1891 (Syrphidae: Syrphinae: Bacchini), was taxonomically revised and a phylogenic analysis was conducted. The monophyly and internal phylogenetic composition of Argentinomyia and related taxa were reconstructed, based on adults morphologic characters. The ingroup includes 26 available species of Argentinomyia. Fourteen species of Melanostoma, Platycheirus, Tuberculanostoma, Talahua and Xanthandrus (all Bacchini) were used as out-groups. Trichopsomyia antillensis Thompson (Pipizini) was selected to root the phylogeny. The analysis of 70 phylogenetically informative characters produced one most parsimonious cladograms (L=120 steps, CI=65, RI=90) within the in-group topology (A. altissima, (A. rex, (A. browni, (A. bolivariensis))), (A. octomaculata, (A. tropica, A. luculenta)), (A. opaca, A. rugosonasa, ((A. crenulata, A. testaceipes))), (A. nigrans, (A. lineata, (A. neotropica, A. pollinosa))), ((A. currani, A. maculata), (A. praeusta, A. jamaicensis))), (A. catabomba, A. lanei)), (A. scitula, A. columbiana, A. fastigata, A. thiemei, (A. longicornis, A. peruviana)))). Argentinomyia is placed in the tribe Bacchini, subtribe Melanostomatina. According to the strict consensus and preferred character state optimizations, Argentinomyia is a monophyletic group with Melanostoma as the sister genus. There are several synapomorphies for Argentinomyia, although all show reversals in at least a few species: 1) a bare area under the antenna; 2) elongated antenna, with scape much longer than wider, basoflagellomere usually elongated; 3) female front with a pollinose pattern; 4) face with transverse grooves, sometimes broadly punctuate and with iridescent reflections; 5) male genitalia with surstyles generally widened and apically irregular. At least seven well-recognizable species groups are characterized: browni, tropica, crenulata, neotropica, maculata, lanei and longicornis. A new key to all species is provided. New diagnosis, detailed distributional data, notes on the biology of some species, and illustrations of critical characters (photographs and drawings) are included to assist the identification. en_US
dc.description.graduationSemester Fall en_US
dc.description.graduationYear 2012 en_US
dc.description.sponsorship NSF grants to Nico Franz, and a grant from the Dipterology Fund to the author for attending the 6th International Symposium on the Syrphidae, Glasgow, UK. The Samuel Wendell Williston Diptera Research Foundation for financial support to ALM for studying the Smithsonian Entomological Collection. en_US
dc.language.iso en en_US
dc.rights.holder (c) 2012 Augusto L. Montoya Giraldo en_US
dc.rights.license All rights reserved en_US
dc.subject Argentinomyia Lynch Arribálzaga, 1891 (Syrphidae: Syrphinae: Bacchini) en_US
dc.subject Melanostoma en_US
dc.subject.lcsh Syrphidae -- Classification. en_US
dc.subject.lcsh Syrphidae -- Phylogeny. en_US
dc.title Phylogenetic analysis and taxonomic revision of the neotropical genus Argentinomyia Lynch Arribálzaga, 1891 (Diptera: Syrphidae) en_US
dc.type Thesis en_US
dspace.entity.type Publication Biology en_US M.S. en_US
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
2.74 MB
Adobe Portable Document Format
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
1.64 KB
Item-specific license agreed upon to submission