oa Journal of the Entomological Society of Southern Africa - The immature stages of Merodon bombiformis Hull, a potential pest of bulbs in South Africa. (Diptera: Syrphidae).
In November, 1955, Professor M. J. Oosthuizen of the Natal Agricultural Research Institute gave me several syrphid flies for determination. These had been reared from larvae found feeding on bulbs of Gladiolus sp. in Pietermaritzburg. The species proved to be Merodon bombiformis Hull (1944), descriptionbed on a single male in the Distant Collection taken in 1898 at an unknown locality in South Africa. The life history of this species has not been descriptionbed, and I have been unable to find references to the immature stages of any of the other nine species of Merodon known from the Ethiopian Region. It seems desirable to give an account of the immature stages of bombiformis as it is evident that this species may at times cause considerable damage to bulbs.
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