Canadian Forest Service Publications
Pentes sablonneuses de carrières : cimetières des imagos de Metasyrphus lapponicus (Diptera : Syrphidae) atteints d'entomophthorose. 1975. Smirnoff, W.A.; McLeod, J.M. The Canadian Entomologist 107(10): 1123-1128.
Issued by: Laurentian Forestry Centre
Catalog ID: 16101
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Field observations revealed many dead specimens of the adult syrphid Metasyrphus lapponicus Zetterstedt in a quarry in the Chicoutimi region of Quebec in the summer of 1972. All the flies lay in horizontal strips with their head towards the zenith of the sun. The presence of mycelium indicated that they succumbed to a fungal disease. A fungus representing a species of Entomophthora was isolated and found to be new. Why the syrphids chose the sandy slopes of a quarry in which to die was not determined.