Functional-morphological investigations on the flight muscles and their insertion points in the blowfly Calliphora erythrocephala (Insecta,Diptera) |
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Authors: | A Wisser W Nachtigall |
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Institution: | (1) Zoologisches Institut der Universität des Saarlandes, D-6600 Saarbrücken, Federal Republic of Germany |
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Abstract: | Summary In flies, for example the blowfly Calliphora erythrocephala, the thorax has fused to form a chitinous capsule. In it we find three functional types of flight muscles, the indirect flight muscles, the direct, and the tension muscles. The indirect or wing beat muscles transfer their power to the capsule which is capable of oscillating. They are suspended nearly horizontally and vertically . The direct muscles used for steering insert laterally on the capsule and go to the wing joint. The third functional type of flight muscle serves to put the lateral walls of the thorax under tension. The site and morphology of the flight muscles are described in detail, making use of 3-dimensional drawings. The flight muscles of Calliphora erythrocephala (Heide 1968) and their functions are compared with those of other dipterans described by different authors.With support of the Deutsche Forschungsgemeinschaft to Professor Nachtigall |
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