Laboratory Colonization, Life History Observations, and Desiccation Tolerance of the Canyon Fly Fannia conspicua (Diptera: Fanniidae)

Journal of Medical Entomology
Congcong Zhang, Alec C Gerry

Abstract

"Canyon flies" are flies within the Fannia benjamini Malloch species complex. These flies can be considerable pests to humans and animals due to their habit of feeding on animal body secretions such as tears, mucus, sweat, and blood. Adult "canyon flies" (Fannia conspicua Malloch) were collected from the coastal mountain community of La Habra Heights in Los Angeles County, CA, during late spring and early summer of 2011. Canyon flies were colonized in the laboratory and maintained for over two years. Larval growth, sex-specific adult emergence, and fecundity were evaluated quantitatively. At 25°C, male flies required a minimum of 22 d postoviposition to develop from egg to adult, with peak emergence occurring at 24-26 d; female flies required a minimum of 25 d postoviposition, with peak emergence occurring at 26-28 d. Female flies were capable of oviposition starting at 7 d postemergence, and produced a mean of 90.6±54.7 eggs over a 19-41-d life span. Canyon fly eggs were quite resistant to desiccation, with hatching rate of eggs reduced only after ≥12 wk of desiccation, and some successful hatching even when eggs were desiccated up to 28 wk. When immature flies were removed from their food source and subjected to continuous de...Continue Reading

References

May 1, 1988·Journal of Medical Entomology·J A Meyer, B A Mullens
May 10, 2000·Journal of Insect Physiology·H V Danks
Jun 4, 2011·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Rachel M MohrAlec C Gerry

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