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      Mouthpart dimorphism in male and female wasps of Vespula vulgaris and Vespula germanica (Vespidae, Hymenoptera)

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      Deutsche Entomologische Zeitschrift

      Pensoft Publishers

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          Abstract

          Social wasps perform a variety of tasks with their mouthparts. Female workers use them to feed on carbohydrate-rich fluids, to build nests by collecting wood fibers and forming paper, to hunt and manipulate insect prey for feeding larvae as well as for brood care. Since male wasps neither feed on insects nor participate in nest building, sex-specific differences in mouthpart morphology are expected. Despite these different applications, general mouthpart morphology of male and female wasps from the genus Vespula was similar. However, males possessed significantly shorter mandibles with fewer teeth than females. Furthermore, the adductor muscles of the mandibles were distinctly smaller in males than in females. Male wasps showed a higher number of sensilla on the mandibles and the labial palpi. Mouthpart dimorphism and functional morphology of fluid uptake are discussed.

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          Most cited references 15

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          Mouthparts of flower-visiting insects

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            Biology of the Vespine Wasps

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              Functional and evolutionary aspects of mouthpart structure in parasitoid wasps

               Mark Jervis (1998)
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                Author and article information

                Journal
                Deutsche Entomologische Zeitschrift
                DEZ
                Pensoft Publishers
                1860-1324
                1435-1951
                February 23 2018
                February 23 2018
                : 65
                : 1
                : 65-74
                Article
                10.3897/dez.65.23593
                © 2018

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