Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Cluster flies (Calliphoridae: Polleniinae: Pollenia) of North America
By Adam Jewiss-Gaines, Stephen A. Marshall, and Terry L. Whitworth
Canadian Journal of Arthropod Identification, 2012
Cite: 616629 with citation markup [cite:616629]
Photographic key and brief notes about Pollenia species known from North America.


Very Good info & guide!
The photos in the key show me just what to focus on when I shoot my next cluster fly!

any chance this will help sorting out BG holdings? what do you think?

I can't speak for John F. Carr, but I just identified a Pollenia I photographed last year to species using this key. It does require a microscope or very detailed macros of a fly. Not sure most of our submissions have enough detail.

Pollenia identification
I'm glad to see some people using the key and enjoying it! Thanks for the kind comments!

Unfortunately, yes it's tough to look at previous photos and identify a Pollenia down to species level. The details are very minute so many of them are tough to ID unless you have a very specific shot. That being said, P. vagabunda and P. griseotomentosa stand out a bit more and might be a tad easier to identify.

I'll take a look through photos on bugguide and see what I can do, though!

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.