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A comparative account of the tracheal system of larvae of the horse bot-fly, Gasterophilus intestinalis (De Geer), and of some other dipterous larvae
Published online by Cambridge University Press: 06 April 2009
Extract
1. The tracheal systems of first, second and third instar larvae of Gasterophilus intestinalis are described.
2. The homologies of the conical tracheae of the tracheal organ are demonstrated and explain the apparent disappearance of a complete tracheal metamere.
3. Anomalies in the tracheal system of the anterior segments of Gasterophilus led to an investigation of the tracheal systems of Drosophila, Eristalis, Calliphora, Scatopse and Aëdes.
4. The anterior tracheal system of larval Diptera has been re-interpreted; that of the Cyclorrhapha can be derived from that of the Nematocera without the formation of new tracheae other than a large trachea from the lateral longitudinal trunk to the antero-lateral musculature.
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- Copyright © Cambridge University Press 1960
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