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    Larval morphology of Meruidae (Coleoptera: Adephaga) and its phylogenetic implications

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    Short_2011_Larval.pdf (572.6Kb)
    Issue Date
    2011-01-01
    Author
    Alarie, Yves
    Short, Andrew E. Z.
    Garcia, Mauricio
    Joly, Luis
    Publisher
    Entomological Society of America
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    Meruidae, or comb-clawed cascade beetles, are a recently discovered monotypic family of Adephaga endemic to Venezuela. The larvae of Meruidae are described for the first time, based on material of Meru phyllisae Spangler & Steiner, 2005, collected together with adults in southern Venezuela. External morphological features, including chaetotaxy, are reported for the mature larva and an assessment made of the polarity of larval characters of phylogenetic utility in Adephaga. Larvae of Meruidae possess a mixture of primitive and derived character states, and they are unique within the Adephaga in that here the mandibles are asymmetrical, the respiratory system is comprised of only two pairs of spiracles (=oligopneustic), the claws are pectinate, and the abdominal sternite VIII is prolonged overlapping the abdominal sternite IX. A parsimony analysis based on 18 informative larval characteristics was conducted with the program PAUP*. The most parsimonious trees confirm Meruidae as a relatively basal lineage within the Dytiscoidea. Both Meru Spangler & Steiner and Noteridae are hypothesized to have diverged anterior to Amphizoidae, Aspidytidae, Hygrobiidae, and Dytiscidae.
    Description
    This is the publisher's version, also available electronically from http://www.ingentaconnect.com/content/esa/aesa. This article is the copyright property of the Entomological Society of America and may not be used for any commercial or other private purpose without specific written permission of the Entomological Society of America
    URI
    http://hdl.handle.net/1808/13668
    DOI
    https://doi.org/10.1603/AN10054
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    • Ecology and Evolutionary Biology Scholarly Works [1450]
    Citation
    Short, Andrew E. 2011. “Larval morphology of Meruidae (Coleoptera: Adephaga) and its phylogenetic implications.” Annals of the Entomological Society of America 104(1):25-36. http://dx.doi.org/10.1603/AN10054

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    KU Libraries
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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