When a Bee is not a Bee! Dasylechia atrox (Asilidae)

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Image Description

I was walking down to the bank of the Kalamazoo River near Marshall, Michigan and heard a very loud buzzing sound. About 1 meter away was a large bumblebee patterned insect perched on some bee balm. I took a few shots and tried to reposition for a better shot, but the critter decided to fly to a new spot. Finally, I was able to get positioned better and fired away with the Z9. I knew this was a bumblebee mimic and was able to determine it as one of our native robber flies. The insect is about 25mm in length.

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Lighting was not the best and had to work up the shadows and highlights to tame everything down. How did I do?

Pertinent Technical Details

Z9 200mm f4 Micro (1/640 sec at f20, ISO 3200) Levels, DeNoise, Shadows and Highlights, slight crop and rotation, Brightness & Contrast, reduction of green and yellow saturation, Rubber stamp tool for crescent shaped highlight on thorax…Jim

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Jim: This challenge should be right up your alley and you’ve certainly provided a great entry here. Terrific capture and I think your processing is spot on. These are fearsome critters and I’m glad it wasn’t sizing you up for lunch. >=))>

Wow, Jim, the mimicry looks perfect. You’ve got great details in this fly. It stands out well against the nice green surroundings.

Very well done. Getting this type of subject matter to hold still long enough to get them can really be a challenge. You got him!

What a clever little fly. What advantage does the fly have for disguising as a bee? Robber flies are insectivorial?

Great image and processing is very good. Nice stage as well.

Nice catch! Sure looks like a bee - very clever little robberfly.
Processing looks great

MY Goodness. I am speechless !!! Just Amazing. !!!

You’ve certainly captured a sharp image of this robber fly Jim. I have never heard of them, but I can see how you could mistake if for a bumble bee. The brown and yellow tones of the fly contrast nicely with the soft green of the foliage in the background. Nice image.