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Photo#239910
Robber fly 1788 - Machimus paropus - female

Robber fly 1788 - Machimus paropus - Female
Monhegan Island, Lincoln County, Maine, USA
September 1, 2005
Found images in the guide of Machimus erythocnemius that looked similar.

Moved
Moved from Machimus.

Machimus erythocnemius has on the
pro-femur 1-2 white, and 1-2 black bristles, which this fly does not. The very similar Machimus paropus, however, has 4-6 black bristles on the pro-femur, which this individual does.

Machimus
I agree that it is Machimus. Hershel's website lists six species for Maine: lecythus, notatus, novaescotiae, paropus, sadyates and snowii. Alas, no M. erythocnemius; of course that's not to say that it isn't possible.:) I think most of the Machs are difficult to seperate from images. Nice shot none-the-less!

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