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Photo#476405
Metallic Wood-boring Beetle - Poecilonota cyanipes

Metallic Wood-boring Beetle - Poecilonota cyanipes
Edmundston, Madawaska County, New Brunswick, Canada
August 1, 2010
It look like Metallic Dicerca tenebrica, but I would like someone to confirm

Poecilonota cyanipes (Say)
Correct, this is Poecilonota cyanipes (Say).

Moved
Moved from ID Request.

could be
but I am still unclear the difference between Dicerca and Poecilonota, as the reddish tails make me think Poecilonota cyanipes....but I could be way wrong....Can anyone point out the smoking gun for those two genera?

 
Poecilonota vs Dicerca
The difference (evident in this photograph) is that Poecilonota has a transverse scutellum, much wider than long, whereas Dicerca has an almost round scutellum.

 
Poecilonota has a single poli
Poecilonota has a single polished ridge running down the middle of the pronotum, while Dicerca has two ridges on either side of the midline. This looks like Poecilonota to me.

 
Agreed
The scutellum is unique as well

 
That small light green spot a
That small light green spot at the base of elytra look as the one following image
http://bugguide.net/node/view/89724/bgimage
would it be californica sp?

but the red at the apex of elytra is more like cyanipes..

 
My vote
is now cyanipes....

 
thank a lot!
thank a lot!

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