Posted by Michael Ackland on 02-06-2012 12:15
#10
John, your Flickr photos are very good, and one can see without difficulty that they are H. lancifer.
Joke's characters (2-11-2010) for this species unfortunately also lead to Eutrichota praepotens Wied! Not Nearctic though.
It will never be possible to have a key to anthomyiid photos. One always needs a specimen to be certain.