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Entomophthora Attack - Pollenia rudis

Entomophthora Attack - Pollenia rudis
Cambridge, Waterloo, Ontario, Canada
February 15, 2009
Of a number of cluster flies (Pollenia) at windowsills, most were dead from Entomophthora infection. I collected some living flies, including one which quickly expired. Soon, bands of fungal spores began to sprout from this individual.

The fly was mounted shortly after the infection began, and images were taken over twelve-hour intervals.

Note: observation was made in an artificial, unventilated environment in the absence of wind dispersal and weathering. I just wanted to record the sporulation process.

Images of this individual: tag all
Entomophthora Attack - Pollenia rudis Entomophthora Attack - Pollenia rudis Entomophthora Attack - Pollenia rudis

Moved from Pollenia pediculata. Specimen re-examined and found to lack pale setal tuft at hc and sc junction, and having three anterodorsal setae on both mid tibia. This is P. rudis

Moved from Cluster flies. Diagnostic feature of P. pediculata is tuft of pale hairs under junction of humeral crossvein and subcosta.

Moved from Unidentified Fungus-ridden Flies. (Moving identified flies to their proper places and linking to them from this article.)

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