Posted by brundlefly on 05-02-2014 21:46
#2
I don't know the Withworth key, but I would assume that those are the setae he refers to. Rognes does not mention them in the Scandinavian key.
I found a Calliphorid key for Canada by Withworth at http://www.biology.ualberta.ca/bsc/ejournal/mwr_11/mwr_11.html
Is that the key you are using?