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Central Oregon Botfly - Cuterebra polita

Central Oregon Botfly - Cuterebra polita
Aldrich Mountain Lookout, Grant County, Oregon, USA
August 1, 2012
Solid yellow side patch with no black spots seems unlike any other photos.


Cuterebra polita?
Dr. Pape was unwilling to put a species name to this one. So I probably shouldn't either, but after reading up a bit, I think this is Cuterebra polita. It is known to lek at high elevations, and uses northern pocket gopher (Thomomys talpoides) as a host, and is known from your state. I have not spent much time on this species, but the lack of black side spots is also a trait in this species, as is the yellowish hairs. I would love to see one of these in the hand, just to be sure. But I can't find much else to fit it.

A beauty!
Um...I am going to use my "lifeline" and email this photo to Thomas Pape in Europe. I am not sure on species yet. Do you have any other photos from different angles? Especially the face? Most of these should have black spots in the yellow. This is not one I have ever seen in the wild. Very cool. We are doing a botfly dna project, and I would love a specimen if you get back up to that area. Often bots, lek, ie the males fight over a certain area or rock, often from 9 am till noon, and females go to that spot and mate with the "king of the hill" holding the prime spot when she happens to arrive. So you may see them again in the same area if you went back around the same time of day. I would put out a reward on this one, as I would love to have it for our dna project. If you are willing to share the details of the location, email me at In the meantime I will work on getting an ID. Thanks so much for posting! Great find. It will be a new one for BugGuide.

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