Caney Mountain Conservation Area, Long Bald Natural Area, Ozark County, Missouri, USA
July 26, 2009
Extremely wary, rarely allowing me to approach within 12 feet no matter how cautiously and slowly I moved. I followed her repeated long, loping escape flights until I was able to get a few shots and she disappeared for good. A new state record for Missouri.
Full story at at my website: North America's largest robber fly
. ID confirmed by Herschel Raney and Eric Fisher (thanks!).