This robber fly is known as Laphria marcquarti which is a species known from Texas, Louisiana, Arkansas, Florida, and probably elsewhere in the southeast. It is quite large and a bumblebee mimic in coloration. The top three shots on the left were taken in Austin, Travis Co., Texas, in May, 2007, with a Canon EOS 1D Mark II and EF 300mm F/4 L IS lens and 2X extender.

The individual on the left was in Austin, Texas, in April, 2008. This shot was taken with a Canon EOS 1D Mark III and EF 300mm F/4 L IS lens and 2X extender.