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Filtering by: Creator Bjarnason, Einar Thor Remove constraint Creator: Bjarnason, Einar Thor Academic Affiliation Entomology Remove constraint Academic Affiliation: Entomology

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  • The morphology and biology of Macrovelia hornii Uhler (Heteroptera : Mesoveliidae)

    Creator:
    Anderson, Aage Bernard
    Abstract:
    The external and internal morphology are considered and important morphological characters are found which relate Macrovelis to the family Mesoveliidae. Both macropterous and Brachypterous forms occur throughout the western half of the United States. The adults and nymphs are restricted to the margins of springs and streams during the reproductive...
    Resource Type:
    Masters Thesis
    Full Text:
    truly fused and form the nerve mass around the oesophagus. The thor- acic ganglia are also fused but