Blowflies Taxa in Forest Regions


Blowflies Taxa in Forest Regions


Abigail Lam

Host Organization

Glebe Park

Supervising Faculty

Kaitlyn Fleming

Reference Number



April 2023

Location of Document



Haliburton County, Glebe Park


Insect Studies


Insects are a large group of arthropods that play essential roles in our environment,
including cycling nutrients, pollinating plants, acting as a food source for other taxa, and many
more. However, regarding non-environmental applications, insects play important roles in
forensic entomology. Although well-studied in urban regions, there is a lack of biodiversity
information on blowfly species in rural habitats. Therefore, this study aimed to determine
blowfly species composition in Haliburton, Ontario. Four bottle traps were set up across three
different types of forests in Glebe Park between July 1st to September 2nd, 2022. In the family
Calliphoridae, we report 11 species: Lucilia illustris, Phormia regina, Calliphora livida, Lucilia
silvarum, Lucilia coeruleiviridis, Calliphora vicina, Lucilia sericata, Calliphora vomitoria,
Cynomya cadaverina, Calliphora terraenovae, and Protophormia terraenovae. We examined if
several environmental variables affected species abundance and composition. We found
accumulated degree days above 0°C, numeric date, total precipitation (14 days), and humidity
affect species abundance. However, none of the variables examined (forest type, elevation, and
distance from the water) seemed to affect species composition. Our results align with previous
research in which accumulated degree days affected Calliphoridae abundance. The results of this
study can help answer questions in forensic entomology, such as calculating post-mortem
intervals, stages of decomposition, and determining if a body has been moved from its original


Trent University



Abigail Lam 2023, Blowflies Taxa in Forest Regions, Trent University