Development of two species of necrophagous flies, Sarcophaga bullata Parker (Sarcophagidae) and Protophormia terraenovae (Robineau-Desvoidy) (Calliphoridae), was examined in different size maggot masses generated under laboratory conditions. Larvae from both species induced elevated mass temperatures dependent on the number of individuals per mass. The relationship was more evident for S. bullata, as larvae generated higher temperatures in every size maggot mass than P. terraenovae. Several development events were altered with increasing maggot mass size of flesh flies, and to a lesser extent blow flies, which corresponded with elevated temperatures. Duration of development of all feeding larval stages decreased with increased size of maggot mass. However, the length of development during puparial stages actually increased for these same flies. Puparial weights also declined with maggot mass size, as did the ability to eclose. The altered fly development was attributed to the induction of heat stress conditions, which was evident by the expression of heat shock proteins (23, 60, 70, and 90) in larval brains of both fly types.
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1 July 2010
Changes in Development and Heat Shock Protein Expression in Two Species of Flies (Sarcophaga bullata [Diptera: Sarcophagidae] and Protophormia terraenovae [Diptera: Calliphoridae]) Reared in Different Sized Maggot Masses
David B. Rivers,
Timothy Ciarlo,
Michael Spelman,
Rebecca Brogan
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Journal of Medical Entomology
Vol. 47 • No. 4
July 2010
Vol. 47 • No. 4
July 2010
blow fly
flesh fly
fly development
forensic entomology
heat shock proteins