Paradejeania rutilioides
These are without a doubt the largest tachnid flies I have ever seen. I thought they were big fat bumblebees when I first
spotted them but once I saw the spots on the back, I knew they were tachnids. They were 3/4 inch long and very wide.
I found them in the Jordanelle wetlands below the dam in Wasatch County. They were actually a brighter orange than
this photo depicts, but that's as orange as my camera and Paint Shop Pro will make it. © Carol Davis, 8-19-2009
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