Use this URL to cite or link to this record in EThOS: https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.743435
Title: Studies on the mouth parts and sucking apparatus in the blood-sucking Diptera
Author: Cragg, F. W.
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 1922
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Abstract:
Philcematomyia insignis is a small greyish-brown fly, found throughout the Oriental region, and recorded also from Tropical Africa. The genus is closely allied to Musca, and in general appearance, breeding habits, venation, etc., there is little to distinguish it. The characteristic feature, on account of which the genus was founded, is the presence of a ring of stout chitinous teeth at the tip of the proboscis. It is, in fact, in spite of its innocent appearance, a voracious bloodsucker. It preys exclusively, so far as is known, on cattle, and in the neighbourhood of this Institute it is much the commonest blood-sucking fly found on them. It is especially fond of feeding on the abdomen of calves which have been shaved for vaccination. Both male and female suck blood, and possibly also feed on the dung in which their eggs are laid. The proboscis is completely retractile, like that of Musca, and it is only exceptionally the case that the teeth can be seen in dried specimens ; even if the proboscis happens to be extended the teeth are not visible unless the labellar walls are retracted so as to disclose them. It is therefore probable that it will be found to be much commoner and more widely distributed than the present records state, when it is more systematically looked for.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (D.Sc.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.743435  DOI: Not available
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