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Photo#64253
Darkling Beetle - Alobates barbatus

Darkling Beetle - Alobates barbatus
Lake Jackson, Osceola County, Florida, USA
July 3, 2006
Size: 17 mm
Is this a Centronopus calcaratus? Please help with the ID. Thanks.

Moved
Moved from Coelometopinae.

Alobates morio, i suppose
*

Moved
Moved from Darkling Beetles.

Moved
Moved from Beetles.

Not quite right?
In the photos I've seen of Centronopus calcaratus, the rear of the pronotum has little flanges at right and left, which don't seem to be present in your beetle. See for example here:

http://entnemdept.ifas.ufl.edu/teneb/c_calcaratus.htm

And also the drawing in Dillon & Dillon (under an earlier genus name, Scotobates).

Boy, these dark darklings can be tough! They are about as bad as ground beetles.

 
Possible ID found
Stephen, thank you for the feedback and the weblink. After looking at many of the photos there, I belive this beetle is Alobates pennsylvanicus. Would you agree? If so it can be moved to a guide page or at least have another person reach the same conclusion. I love your photos by the way.

 
Possibilities
Looking at your image earlier, I was thinking the head looked exactly like A. pennsylvanicus.

What has kept from me from being enthusiastic about that ID is that A. pennsylvanicus has a very flat color (not glossy or shining) and in your image the surface seems shiny. Also, A. pennsylvanicus is not really what you would call striate, it just has rows of relatively sparse punctures. Your beetle seems a little more striate to me than A. pennsylvanicus would be.

Still, all this may just be minor tricks of the camera, lighting, etc.

One more genus to look at would be Xylopinus.

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