PMID: 8586867Dec 1, 1995Paper

Cannibalism and predation behaviour of the blowfly, Chrysomyia albiceps (Wiedemann) larvae (Diptera: Calliphoridae)

Journal of the Egyptian Society of Parasitology
A H Omar

Abstract

Chrysomyia albiceps is considered as a carrion inhabitant and is essentially scavenger. It is among the first species to arrive at carrion and lays its eggs on it almost immediately under favourable conditions. Field studies in Giza area showed that although other flies arrive at the carrion shortly following Chrysomyia, as decomposition progresses, its larvae are the major component predominate, and the common fly emerging from carrion is its adults. First instar larvae is entirely necrophagous, but the 2nd and early 3rd instar larvae may be facultatively predaceous on other dipteran larvae (Muscina and Parasarcophaga) as an alternative food source under crowded or starved conditions. Cannibalism, second and early 3rd instars preying on the 1st instar larvae and on themselves has also been found. Considering the predation behaviour, C. albiceps may be considered as beneficial biological control agent to help in reducing populations of carrion flies which are of medical and veterinary importance owing to their significant role in causing the different kind of myiasis of man and animals. The second instar is less inclined than the early 3rd instar to serve as a predator. The numerous heavily sclerotized spines and fleshy process...Continue Reading

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