Unkonwn Robber Fly - Stenonpogininae? - Cyrtopogon willistoni

Moved

… Will Chatfield-Taylor, 7 January, 2008 - 7:32pm

Moving

Moving to subafamily until an ID is confirmed, beautiful series!

… Will Chatfield-Taylor, 1 January, 2008 - 12:08pm

Northeastern fauna

Is very different from our eastern group. The Cyrtopogon genus is just huge. You have about thirty species up there and this fly has the wings of that genus and the very convex central face. (Side facial view always helpful in this group and an antenna shot.) They are also very hairy. Dr. Cannings might have a chance of getting the species. But I have seen one museum specimen of a Cyrt. And the key (which reminds me to go find one) is not owned by me. You have the correct subfamily.

… Herschel Raney, 28 December, 2007 - 10:32pm

Adittional photos

Hershcel, thanks for narrowing down the field of robbers here. I am glad to have the correct genus. I have added some photos that might help in identification of this insect. Your knowledge of Asilidae is invaluable to so many who use this site. Thanks a million.

… Scott Nelson, 29 December, 2007 - 7:58am

Dr. Cannings

Fairly easily stated it was Cyrtopogon willistoni. And commented:

"Quite common in late spring
in southern BC grasslands, especially mesic ones with plenty of forbs.
It ranges south through most of the western US mountains. Pretty tarsal
ornamentation on the front two legs."

… Herschel Raney, 7 January, 2008 - 7:30pm

Great

Thank you for getting this identified for me and the guide. It is nice to have a firm ID along with a few side comments. Blessings on your efforts.

… Scott Nelson, 8 January, 2008 - 4:27pm