Abstract
DR. S. K. SEN1 has expressed the view that the food-canal of blood-sucking Diptera is not formed, as is generally supposed, by the apposition of the labrum-epipharynx afrid the hypopharynx, but that it is actually the lumen of the hypopharynx itself, a channel which has been regarded hitherto as the continuation of the salivary duct. From the studies I have made it appears to me that this view is quite incorrect. An adequate reply to Dr. Sen would occupy too much space in this journal, but I have fully explained my views in various papers in Parasitology (1926, 1928, 1929 and 1932) and I must ask those who are interested in the subject to refer to them.
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References
NATURE, 135, 915; 1935
Jobling, Bull. Ent. Res., 1928.
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JOBLING, B. Structure of the Proboscis in Blood-Sucking Diptera. Nature 136, 145–146 (1935). https://doi.org/10.1038/136145c0
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DOI: https://doi.org/10.1038/136145c0
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